Answer:
55.1 g Si.
Explanation:
Hello there!
In this case, for the given mole-mole relationship, it is possible to set up the following mole ratio as the moles of Si and P are the same:
1 mol Si = 1 mol P.
Next, since one mole of silicon has a mass of 28.09 g and one of phosphorous of 31.0 g, we can set up the following expression for the mass of silicon:
[tex]60.8gP*\frac{1molP}{31.0gP}*\frac{1molSi}{1molP}*\frac{28.09gSi}{1molSi}[/tex]
Therefore, the result is 55.1 grams of silicon.
Best regards!
Which will have higher boiling point 0.1 m NaCl or 0.1 m bacl2 solution in water?
When comparing the boiling points of 0.1 m NaCl and 0.1 m BaCl2 solutions in water, it is important to note that NaCl has a higher boiling point.
What is boiling point?Boiling point is the temperature at which a liquid changes state from liquid to gas. At this temperature, the vapor pressure of the liquid is equal to the atmospheric pressure, and the liquid is said to be at its boiling point. Boiling point can vary depending on the atmospheric pressure, which is affected by elevation and weather. Generally, the higher the atmospheric pressure, the higher the boiling point of the liquid.
This is because NaCl is an ionic compound, which means it is composed of charged particles that form strong bonds with each other. These bonds are much more difficult to break than the weaker hydrogen bonds that form between molecules in BaCl2. Therefore, the boiling point of 0.1 m NaCl solution in water will be higher than the boiling point of 0.1 m BaCl2 solution in water.
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Is 0.5 NaCl hypotonic or hypertonic?
0.5 NaCl is definitely hypotonic.
What is hypotonic?Hypotonic is a term used to describe a solution that has a lower solute concentration than another solution, such as a cell. In osmosis, water will move from an area of lower solute concentration to an area of higher solute concentration. This can cause a cell to swell and burst when placed in a hypotonic solution.
This means that it has a lower concentration of solutes than the other solution, or the cell in which it is placed. It can help to draw water out of the cell, which can cause a cell to swell or even burst if too much water is drawn out. Hypotonic solutions are used to help treat dehydration and to aid in the absorption of medications.
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Complete the reaction, which is part of the electron transport chain. the abbreviation q represents coenzyme q. use the appropriate abbreviation for the product.
FADH2+Q →
The reaction, which is part of the electron transport chain. the abbreviation Q represents coenzyme Q. use the appropriate abbreviation for the product : FADH₂ + Q ----> QH₂ + FAD
The reaction, which is part of the electron transport chain. the abbreviation Q represents coenzyme Q. use the appropriate abbreviation for the product :
FADH₂ + Q ----> QH₂ + FAD
in this reaction ,the FADH₂ is oxidize. as we all know that that loss of electron is oxidation. the FADH₂ is acts as a reducing agent. The Q gains the electron and gets reduce because gain of the electrons is called as the reduction and act as a oxidizing agent.
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The Figure shows the elements of Period 3 and the first 3 elements of Group 6A of the Periodic Table. Use the Figure to answer questions 10 and 11.
10.Which of the elements have atomic radii larger than S? Select all that apply
A. Al
B. CI
C. Na
D. O
E. P
F. Se
The elements that have atomic radii larger than S are Al, Na, P, and Se.
The correct options are A, C, E, and F.
What are the atomic radii of elements?The atomic radii of elements are defined as the distance between the nuclei of two covalently bonded nuclei of atoms of elements.
Atomic radii of elements show periodicity.
The atomic radii of elements increase from top to down in a group in the periodic table whereas the atomic radii of elements decrease from left to right across a period in the periodic table.
Comparing the atomic radii of sulfur, S, and the given elements:
Al has a larger atomic radii
Cl has a smaller atomic radii
Na has a larger atomic radii
O has a smaller atomic radii
P has a larger atomic radii
Se has a larger atomic radii
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What are the 4 types of weathering?
Answer: The four main types of weathering is I think, Chemical, Physical, Biological, and Mechanical weathering. But if you're talking about main agents then it will have to be water, ice, air, and temperature.
Explanation:
Hope this helps! Tried my best.
if we were to arrange these elements in order based on the number of bonds they form, what order would we put them in?
The order formed from least to most: H< O<N <C<P<S which is determined by the valence electrons.
The octet rule is a chemical rule of thumb that displays the concept that main-institution factors have a tendency to bond in this sort of manner that every atom has 8 electrons in its valence shell, giving it the equal digital configuration as a noble gas. Octet rule states that atoms tend to form compounds in a way that eight valence electrons.
Elements Valence electrons
C 4
H 1
N 5
O 6
P 5
S 6
Number of bonds formed from least to most: H< O<N <C<P<S
Since, P and S has d -orbitals, they can form more number of bonds.
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What is the mass in grams of 4 mol C8H18?
Answer:
457.04 g
Explanation:
Molar mass of C8H18 is 8(12.01) + 18(1.01) = 114.26 g/mol
mass of 4 mol = 4(114.26) = 457.04 g
Can you put lemonade in a silver pitcher?
Yes we can put lemonade in a silver pitcher.
What is Acid ?
Acidic substances are typically easy to recognise by their sour flavours. A molecule that can donate an H+ ion and keep its energetic favorability even after losing H+ is a basic definition of an acid. Blue litmus paper is known to turn red when exposed to acids.
Bases, on the other hand, have a smooth consistency and a bitter flavour. A base that may dissolve in water is known as alkali. When these substances interact chemically with acids, salts are created. Red litmus has a history of becoming blue on bases.
The definitions of the terms acid and base vary depending on how one chooses to see the properties of acidity and basicity.
Yes, acidic fruit juices like orange or lemon juice have an interaction with silver in that they help to eliminate some types of surface discoloration that may develop. Because of this, jewellers soak jewellery in a moderate acid for 5 to 15 minutes to remove these coatings off the surface of the silver, among other things.
In order to prevent these dissolved chemicals from getting into your juice, it is a good idea to polish and then completely wash the silver pitcher or other silver crockery before use. Although it isn't particularly harmful, it might alter the flavor;)
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Label The Functional Groups In The Molecule.Label The Image Of A Compound Light Microscope Using The Terms Provided.
The the NH₂ group in the given compound is called amino group and the Cl group is chloride. The functional group C=O is called ketonic group. The COR in the first end is called an alkoxy group and the functional group OH is called hydroxy group.
What are functional groups?Functional group in an organic compounds are groups with heteroatoms such as N, O, halogens etc. The organic compounds are named based on the position of these functional groups in the compound. Their prefix or suffix are given to the name.
The functional group OH is called hydroxyl group and the group COR is an ether or alkoxy group. The C=O group is called a carbonyl or ketonic group.
The the NH₂ group in the given compound is called amino group and the Cl group is chloride. The compound contains hydroxyl group, alkoxy group and bromide group also.
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Search and find 5 applications of Neutralisation reaction and draw a mind map for the
same.
Answer:
Wasp stings
For tummy aches and high acidity in the stomach
Tooth decays
To treat soils which are acidic
Bee stings
What are the four 4 main ways that enzymes can bind catalyze a reaction?
The four main ways that enzymes can bind to and catalyze a reaction: Lock and Key Model, Induced Fit Model, Multi-Substrate Model, Cofactor Model.
Lock and Key Model: In this model, the enzyme has a specific active site that fits the shape of the substrate like a lock fits a key. The substrate fits into the active site, and the enzyme catalyzes the reaction.
Induced Fit Model: In this model, the enzyme's active site is flexible and changes shape slightly to fit the substrate. The substrate and enzyme still fit together specifically, but the active site changes shape slightly to better accommodate the substrate.
Multi-Substrate Model: In this model, the enzyme has multiple active sites and can bind to and catalyze the reaction of multiple substrates simultaneously.
Cofactor Model: In this model, the enzyme requires an additional molecule, called a cofactor, to catalyze the reaction. The cofactor may be a metal ion or a small organic molecule, and it binds to the enzyme to increase its activity.
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as temperature increases, what happens to the viscosity of water? explain why this occurs, in terms of molecular interactions and the effect of changing temperature
The molecules move more quickly as the temperature rises, and their kinetic energies are better equipped to overcome the forces holding them together. As a result, the viscosity of the liquid reduces.
Why and what will happen to the viscosity when the temperature rises?Because particles interact more quickly and for shorter periods of time as temperature rises, viscosity will also decrease because internal friction or stress will be reduced.
How does a fluid's viscosity change as its temperature changes?The molecules become more mobile when the temperature rises due to an increase in kinetic or thermal energy. Reduced viscosity results from a decrease in the attractive binding energy.
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why is it important to perform the fractional distillation slowly? what happens if a fractional distillation is done very quickly by rapidly raising the temperature of the heat source?
To accomplish a satisfactory separation, a slow, even distillation is required since only under these circumstances can vapor and liquid in the distillation apparatus be in balance with one another.
What justifies using a slow fractional distillation process? What would occur if it was completed too soon?The best equilibration and heat transport can essentially be achieved through slow, steady distillation. If you heat the mixture too quickly, the vapors could not condense as quickly as you'd want, wasting some of the column. Packaging supplies are also essential. Packing materials with a large surface area give surfaces on which condensation can happen.
How does too-rapid distillation affect the process?Additionally, bumping may happen if the distillation proceeds too quickly. -The target liquid's vapors condense too soon and fall back into column.
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Please fully evaluate the IR spectrum of dibenzalacetone. Please include the IR absoprtion frequencies of the functional groups, type of vibration (bend, stretch), as well as the functional group that caused those frequencies (ketone, aromatic, etc...).
For example:
C-H Stretch
Aromatic
3000-3100 cm-1
The IR absorption frequencies of the functional groups is follows 3000-3300-Sp2 C-H stretching; 1500-1800-C=O stretching; 1400 -1500-Aromatic C=C stretching; 600-900-Alkene =C-H bending.
A number of steps are used to demonstrate the base-catalyzed aldol condensation synthesis of dibenzalacetone. The electrophilic carbonyl carbon in benzaldehyde is attacked in step one by an acetone anion acting as a nucleophile, resulting in the formation of a hydroxyl ketone.
After the hydroxide exits in step two, a double bond is created. The active nucleophile then transforms into an intermediate and attacks a benzaldehyde to create the second hydroxyl ketone.
In step three, the reaction is repeated, resulting in the formation of a second double bond, dibenzalacetone. There are three possible isomers of dibenzalacetone. Trans, trans (E,E), trans, cis (E,Z), and cis, cis are the three distinct isomers (Z,Z).
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What are the 4 types of bonds in chemistry?
The four types of bonds in chemistry are ionic , covalent , hydrogen and polar covalent bond.
Generally the elements have an incomplete octet or an incomplete duplet . In order to gain noble gas configuration these elements reacts with each other to complete their octet or duplet.
This leads to formation of bond between them.
Bonds are formed either by losing an electron or by gaining an electron. Metal loses electrons forming cations whereas non metals gain electrons forming an anion.
Hydrogen bond is a weak bond in nature as they are based on Van der walls force of attraction whereas the others are strong bonds.
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what is the hybridization of all the atoms (other than hydrogen) in each of the following species?
Hybridization is the concept of when two atomic orbitals mix up to give rise to a new type of hybridized orbitals. This intermixing of orbitals oftenly results in the formation of hybrid orbitals having entirely different energies, shapes, etc.
According to the question , Here the hybridization of the given atoms are:
1] For HCN, there are TWO electron groups surrounding the central carbon atom: a single C-H bond and a triple C-N bond. The carbon atom in HCN is therefore sp hydribidised.
2] In HCN there is a triple bond between carbon and nitrogen. A triple bond consists of the end-to-end overlap of two sigma bonds and the side-to-side overlap of two unhybridized p-orbitals. Therefore, in this case nitrogen has sp hybridization.
3] For NH₄⁺ : Since the geometry is tetrahedral, the hybridization is sp3.
4] For CH₃⁻ is sp3,
5] CH₃⁺ is sp2.
6] NH₃ hybridization is sp3
7] C[CH₃]₄ the hybridization is sp3.
8] H₃O⁺ ion, here O is sp3 hybridized
The given question is incomplete and the completed question is given as,
What is the hybridization of all the atoms (other than hydrogen) in each of the following species? HCN, NH₄⁺, CH₃⁻, CH₃⁺, NH₃, C[CH₃]₄, H₃O⁺.
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Alcohols: SN2 reaction of 1-bromobutane and EtoNa 12 of 19 Review Constants Periodic Table Part A Predict the major organic product formed when the compound shown below undergoes a reaction with EtONa. Br
Option (B) 3-dimethylbutan-2-amine is the primary organic product generated by the following process.
It should be emphasized that the ketone and primary amine reaction takes place in an acidic buffer. The primary organic product of this reaction is ethyl chloride. Carbohydrates, fats (lipids), proteins, and nucleic acids are examples of organic chemicals that serve as the foundation for life's molecules. Petroleum and natural gas, which are the major components of fossil fuels, are also organic molecules. The addition of hydrogen bromide to propene yields 2-Bromopropane. As a result, option B is the correct answer. 3-dimethylbutan-2-amine is the primary organic product generated by the following process.
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What materials are needed to test if a sample compound is ionic?
Answer:
You have these materials the solid compound a glass container a spoon and a conductivity apparatus.
Explanation:
FILL IN THE BLANK. ______ contain(s) many ______, and ______ are instructions for producing ______.
Chromosomes contain many genes, and genes are instructions for producing proteins.
Chromosomes are thread-like objects that are found in the nucleus (core) of cells. One chromosome is made up of one protein and one DNA molecule. Different chromosome sizes can be packed together into a nucleus thanks to proteins called histones. Our chromosomes would be as tall as ours without them. The exact instructions needed by your cells to create a distinct you are provided by your chromosomes.
There should be 23 pairs of chromosomes in humans (46 total). Chromosomes are divided into one pair of sex chromosomes and 22 numbered pairs (autosomes) (X and Y). You receive a pair of chromosomes, one from each parent. The building blocks of your body are your genes. The instructions to produce proteins are provided by some genes. Your body receives instructions from proteins about the kinds of physical traits you ought to have, such as your hair and eye colour. Some genes produce RNA that performs additional functions.
Hence, genetic information is translated into protein based on need.
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Practice Problem 05.38a Draw the enantiomer of the following compound: Cl OH 2
The enantiomer of the compound: ClOH₂
Identify the chiral center in the compound. The chiral center is a carbon atom bonded to four different groups.Draw the compound, making sure to include all the atoms and bonds.Flip the compound horizontally.What is an enantiomer?Generally, To draw the enantiomer of a compound, you need to flip its chiral center, which is a carbon atom bonded to four different groups. In the compound you provided, ClOH, there is no chiral center.
Therefore, there is no enantiomer.
If you have a compound with a chiral center and you want to draw its enantiomer, you can follow these steps:
Identify the chiral center in the compound. The chiral center is a carbon atom bonded to four different groups.
Draw the compound, making sure to include all the atoms and bonds.
Flip the compound horizontally.
For each bond to a chiral center, swap the two groups attached to that bond.
For example, the compound (S)-2-chlorobutane has a chiral center at the carbon atom bonded to a chlorine atom, a hydrogen atom, and two methyl groups (-CH₃). To draw its enantiomer, (R)-2-chlorobutane, we can follow these steps:
Identify the chiral center.Draw (S)-2-chlorobutane:H₃C-CH₂-ClFlip the compound horizontally:Cl-CH₂-H₃CSwap the two groups attached to the bond to the chiral center:H₃C-CH₂-ClThe resulting compound is (R)-2-chloroquine.
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11) Choose the best Lewis structure for NO3 . A) B) C) D) E) 12) Identify the number of electron groups around a molecule with a trigonal bipyramidal shape. A) 1 B) 2 C) 3 D) 4 E) 5 13) Determine the electron geometry (eg) and molecular geometry(mg) of BC13. A) eg trigonal planar, mg trigonal planar C) eg tetrahedral, D) eg-trigonal planar, mg bent E) eg trigonal bipyramidal, mg trigonal bipyramidal 14) Determine the electron geometry (eg) and molecular geometry (mg) of SiF A) eg-tetrahedral, mg-trigonal pyramidal B) eg octahedral, mg square planar C) eg trigonal bipyramidal, mg-trígonal pyramidal D) eg tetrahedral, mg bent E) eg tetrahedral, mg tetrahedral
11. The Lewis structure of [tex]NO_{3}[/tex] can see in the Attachment.
12. The number of electron groups around a molecule with a trigonal bipyramidal shape is 5.
13. The electron geometry (eg) and molecular geometry (mg) of [tex]BCl_{3}[/tex] is
eg = trigonal planar, mg = trigonal planar
Thus, the correct answers are
11. C
12. E
13. There is no correct options in the question.
How do we find the number of electron groups?The “Electron Group” geometry of eаch centrаl аtom in а structure cаn be determined by simply counting the number of “groups” of electrons аround the аtom, then considering how those groups would аrrаnge themselves to be аs fаr аpаrt аs possible.
The structure [tex]BCl_{3}[/tex] moleculаr geometry is trigonаl plаnаr. The bond аngle is 120°. The centrаl аtom аlso hаs а symmetric chаrge аround it аnd the molecule is non-polаr.
Your question number 13 is incomplete, but most probably your full question can see in the Attachment.
Thus, the correct answer for question number 13 is A.
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What mass of sodium nitrate will dissolve in 100 grams of water at 20 C?
At 20°C, 100 grams of water can dissolve up to 37.2 grams of sodium nitrate.
What is dissolve?Dissolving is a physical process where a solid material is broken down into smaller particles and distributed within a liquid. This process can be achieved through several methods, such as applying heat, pressure, chemical reactions, or mechanical agitation. In a physical sense, dissolving is a process of taking a solid or liquid and forming a solution, which is a mixture of two or more substances. Dissolving is an important process in many industries, such as food production, pharmaceuticals, and chemical engineering. Dissolving is also used in everyday life, such as when adding sugar to tea or coffee.
This is due to the fact that sodium nitrate has a solubility of 37.2g/100g of water at 20°C. Solubility is the maximum amount of a substance that can be dissolved in a given amount of solvent (in this case, water). As the temperature increases, the solubility of sodium nitrate also increases.
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Please answer the 12 steps thank you Design a synthesis of 3-cyanocyclopentanol from cyclopentanol. OH OH CN Part 1 out of 12 ces Choose the best option for the immediate precursor to the target molecule. OH
The chemical equations showing synthesis of 3-cyanocyclopentanol from cyclopentanol is attached in the image below.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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created a standard curve and calculated the slope to be 65.2. after synthesizing your copper network, you weighed 0.055 grams of your copper product, worked it up with nitric acid, buffer, and ammonia and added it to a 25 ml volumetric flask. then, you measured the absorbance of your solution and received a value of 0.323. what is the % mass of copper in your product?
The % mass of copper in your product will be 3.64 %.
Calculated slope = 64.5
Mass of copper product = 0.055 g
Initial volume (V1) = 25 ml
Final volume (V2) = 100 ml
Absorbance (A) = 0.323
% mass of copper = ?
To find out the concentration (C) we use the following equation
C = A / slope
Put the values
C (M2) = 0.323 / 64.5
C (M2) = 0.00501 g/L
To calculate M1 we use the following equation.
M1V1 = M2V2
M1 = 0.00501 * 100 ml / 25 ml
M1 = 0.02004 g/L
mass of copper = Penny solution x Volume
mass of copper = 0.02004 g/L x 0.1 L
mass of copper = 0.002004 g
% mass of copper = (total mass of copper ÷ mass of penny) x 100
% mass of copper = (0.002004 / 0.055 ) x 100
% mass of copper = 3.64 %
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a student is given 1.4799 g of pure cuo. to recover the cu present in the compound, the dark powdery solid was dissolved in 15.0 ml of 6 m hcl and the solution was diluted to 50.0 ml with water. how many grams of mg is needed to displace all of the copper (ii) ions from the solution?
It takes 0.4402 grams of magnesium to remove every copper (II) ion from the solution.
A substance's mole is equivalent to 6.022 x 1023 of that material (such as atoms, molecules, or ions). The term "Avogadro's number" or "Avogadro's constant" refers to the number 6.022 1023.
Calculation:1 mole of CuO has 1 mole of ions, then 0.01834 moles of CuO will have 0.01834 moles ofMg(s) + Cu² (aq) → Cu(s) + Mg²(aq)
According to reaction , 1 mole of copper (II) ion reacts with 1 mole of magnesium solid .
Then 0.01834 moles of copper (II) ion will react with :
1 × 0.01834 mol = 0.01834 mol of magnesium
Mass of 0.01834 moles of magnesium :
0.01834 mol × 24 g/mol = 0.4402 g
0.4402 grams of Mg is needed to displace all of the copper (II) ions from the solution.
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What is the concentration of solution if 20gm solid dissolved in 180 gm of water?
Calculate the concentration in terms of mass by solution mass % for a solution that has 20g of sugar dissolved in 180g of water.
The answer is that 20g of sugar dissolves in 180g of water. 180g plus 20g equals 200g for the solution's total mass.
Mass of the solute / Total mass of the solution 100, i.e. 20/200 100 = 10%, is how you calculate the mass by mass percentage of the solution.
What dissolves in water?Coffee, salt, and sugar are a few items that can dissolve in water. These things break down. Usually, warm or hot water makes them dissolve more quickly and readily. Sand and pepper are both soluble in hot water, but not at room temperature.
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What will be the ratio of the root mean square speeds of the molecules of an ideal gas at 270K and 30K?
The ratio of the root mean square of the molecules of an ideal gas at 270K and 30K
Vrms/ V'rms = √ T/T' = √270/30= 3:1
What is formula to calculate RMS?The root mean square of the molecules is given by
Vrms= √3RT/m
T is the temperature
m is the mass of the molecules
R is the Gas constant
Calculation:In the question, it is given
T = 270K
T'= 30K
Thus, applying the above formula
Vrms (T) = √3R × 270/m
Vems(T') = √3R×30/m
Dividing the two
Vrms(T) / Vrms(T') = √270/30=√9= 3
Hence, the ratio of the RMS of molecules of an ideal gas at 270K and 30K
Vrms/ V'rms = √ T/T' = √270/30= 3:1
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Can you put fruit in a pewter bowl?
Absolutely! Utilize those lovely dishes to the fullest. Always keep in mind that any acidic food, such as tomatoes, oranges, and vinegars, will create spots on pewter, just like they do on sterling.
Pewter can you put fruit on it?Cut flowers should not be placed inside a jug if you want to use it for something else. Additionally, avoid storing acidic foods or fluids in pewter for extended periods of time since this may cause the metal to tarnish.
Can you use Mexican pewter in cooking?Any form of meal, including salads, can be prepared in Mexican pewter. Both the refrigerator and the oven are compatible with it. Although it is not advised for baking, the majority of Mexican Pewter products are authorized for a maximum temperature of 350 degrees Fahrenheit.
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How many moles of O2 are used to produce 4 moles of NO?
The number of moles of O₂ used to produce 4 moles of NO is 2 moles
How do I determine the mole of O₂ used?First, shall write the balanced equation. This is given below:
N₂ + O₂ -> 2NO
From the balanced equation above,
2 moles of NO were obtained from 1 mole of O₂
With the above information, we can determine the number of moles of O₂ used to produce 4 moles of NO. This can be obtained as follow:
From the balanced equation above,
2 moles of NO were obtained from 1 mole of O₂
Therefore,
4 moles of NO will be obtain from = (4 × 1) / 2 = 2 moles of O₂
Thus, number of mole of O₂ used is 2 moles
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How many mol are in a Mg?
The molar atomic mass of magnesium is given as 24 g mol⁻¹.
Molar mass of a substance is defined as the mass in grams of one mole of the compound. In any substance, the total amount of entities present e.g. atoms, molecules, ions, is defined as a mole. A mole of any substance is equal to 6.022×1023 molecules or atoms.
The molar mass of a compound is basically calculated by adding the quality atomic masses (in g/mol) of the constituent atoms. For example, the mass of titanium is 47.88 amu or 47.88 g/mol. In 47.88 grams of titanium, one mole or 6.022 x 1023 titanium atoms are present.
As molar atomic mass of magnesium is 24 g mol⁻¹ so, one mole of magnesium weighs 24.31 g.
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