What is the percentage composition of each element in ammonia, NH3?  82.35% N; 17.65% H  80.55% N; 19.45% H  79.46% N; 20.54% H  78.57% N; 21.43% H

Q: What is the molecular mass of the compound? molecular mass = g mol-1

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Q: Allicin is responsible for the distinctive taste and odor of garlic. It's simple formula is…

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Q: ind the percentage composition: a. Sodium Carbonate tetra hydrate Na2CO3 .4H2O b. Zinc Phosphate

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Q: Calculate the empirical formula of a compound which contains 47.3 percent C, 10.6 percent H, and…

A: The unknown compound contains 47.3% C, 10.6% H, and 42.1% O by weight   We know that --- the atomic…

Q: 4. Calculate the number of moles of CuSO4•5H2O in 100 g of the solid.

A: Given details, Mass (m) = 100g Atomic mass of CuSO4.5H2O = 249.68 g/mol To calculate the number of…

Q: Turquoise, CuAl 6 ( P O 4 ) 4 ( OH) 8·5 H 2 O(s), is one of the most valuable non-transparent…

A: Calculate molar mass of both hydrated and anhydrous form of the mineral and then calculate the mass…

Q: Calculate the following to four significant figures:(a) the percent composition of ammonia, NH3(b)…

A: Percent composition is given by:

Q: What is the average mass (in amu) of:a. Hg b. Kr c. Mg

A: The average atomic mass of an element is the average weight of all the isotopes of that element,…

Q: Calculate the percent composition by mass of each element (Pb, C, O) in lead(II) carbonate.

A: Complete solution is given below in next step

Q: Write all possible mole ratios between each element in the compound C4H10O2.

A: In one mole of the compound C4H10O2, there are 4 moles of C, 10 moles of H and 2 moles of O.

Q: What is the percentage composition of each element in hydrogen peroxide, H2O2?  7.01% H and 92.99%…

A: Molecular Mass of H2O2  =34g/mol Mass of 2H =2g Mass of 2O = 32g percentage composition of hydrogen…

Q: Given the following percentage composition: 43.64% phosphorus and 56.36% oxygen; and molecular mass…

A: The given data contains, Phosphorus =43.64% Oxygen =56.36% Molecular mass =141.9 g

Q: Calculate the number of mol corresponding to:a. 15.0 g NaCl b. 15.0 g Na2SO4

A: Given, Mass is given. Formula Used, moles (n)=Given MassMolar Mass

Q: Determine the percent composition of silicic acid. The chemical formula is H4O4Si.

A: Percentage composition is calculated by dividing the mass of single element with molecular mass of…

Q: How many moles of NH3 can be produced from 15.0 mol of H2 and excess N2?

A: The chemical equation for the production of ammonia is as follows:

Q: what is the percent by mass of oxygen in citric acid? (MM=192.12 g/mol)

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Q: What is the weight of nitric acid in 12.5N HNO3 solution? Use the following atomic weights H - 1…

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Q: What is the molar mass of NaOH? H2C2O4? H2C2O4·2H2O?

A: Calculation of the molar mass of NaOH--- Element Symbol Atomic weight Number of atoms Total mass…

Q: What is the percent (by mass) water CaSO4.2H22O?

A: Here, we have calculate % by mass of H2O in CaSO4.2H2O.

Q: How many mols of sncl4 can be produced from .90 mol of fecl3

A: The question is based on the redox reaction of FeCl3 and SnCl2. Here FeCl3 acts as the oxidizing…

Q: Hydrogen peroxide H2O2 is commonly used to clean bacteria in scrapes and cuts. It can be used as a…

A: 1 mol of a substance has   6.022×1023 (NA)   atoms/ molecules/ formula units of the substance.Number…

Q: Assume vit K1 makes up 0.052% ( by mass) of cilantro. How many moles of vit K1 is there in your…

A: Vit K1 makes up 0.052% (by mass) of cilantro. 1 tsp of cilantro is used here and volume of 1 tsp is…

Q: How many moles of AI can be produced from 10.87g of Ag? AI(NO3)3(s)+3Ag=AI+3AgNO3

A: In the given reaction, one mole of aluminum nitrate reacts with three moles of silver to form one…

Q: Assuming one mole of compound, calculate the theoretical percentage composition of SO3. [MM (S) =…

A: Percentage composition  of element is defined as how much percentage of that element is present in…

Q: How many moles are present in 35.6g of H2SO4?

A: Given the mass of H2SO4 = 35.6 g The molecular mass of H2SO4 = 98 g/mol

Q: . Lycopene (C40H56) is an antioxidant molecule that is thought to slow aging and reduce the risk of…

A: Given that Lycopene is C40H56 an antioxidant. Minimum daily intake = 6.5 mg = 0.0065 gram

Q: How much NH3 can be made from 20.0 g of N2 and 5.0 g of H2?

A: Balanced equation is, N2(g) + 3H2-> 2NH3(g) Number of moles of N2 = Mass in gram / Molar mass…

Q: 4. An 8.00 gram sample of the hydrated salt, CoCl2 • X H2O was thermally decomposed into anhydrous…

A: The question is based on the concept of reaction stoichiometry. We have  to calculate mole ratio of…

Q: Aspirin, C9H8O4, is a common pain reliever and is also often given in low doses daily for prevention…

A: Given :- number of moles of aspirin (C9H8O4) in sample = 0.0745 mol  To calculate :- mass of aspirin…

Q: What is the percent composition by mass of the hydrogen in (NH,)2HPO,? (3 pts) x Clear AUndo Redo

A: Percent composition by mass of the hydrogen= 6.82%

Q: Calculate the percentage composition by mass for each element in the following: (a) (CH3)2N2H2 H%=…

A: Give the % composition of each species present in the compounds-

Q: is the mass of each component? s of CH,O : g CH,O s of water: g H,O

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Q: H.W/ calculate the number of grams in one mole of CaSO4.H2O.

A: The mass of one mole of a compound is known as its molar mass. The molar mass of a compound can be…

Q: Calculate the number of moles of glucose (C6H12O6) in a 5.380 g sample

A: Number of moles can be calculated by using the following formula Number of moles=MassMolar mass

Q: What is the mass percent composition for each element for C2H6O2

A: The mass percent of an element in the compound can be calculated by dividing the mass of element…

Q: ) What is the molar mass of calci um carbonate CacoO3) ? A) 55 g/mol B) 68 g/mol C) 100 g/mol D) 112…

A: Molar mass is the mass of a compound in units g/mol. It is the sum of atomic masses of element in…

Q: The Following information determine how much product can be produced form the giver quanities.…

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Q: Peroxyacylnitrate (PAN) is one of the components of smog. It is a compound of C, H N and O.…

A: Empirical formula :-  The formula which shows only relative number of atoms of different elements…

Q: How many grams of N2 will be used to produce 85.5 moles of MgN3

A: Balanced Reaction 2 Mg +3N2 →2MgN3 Now 2 mol Mg reacts with 3 mol N2 and produce MgN3.  This is…

Q: The percentage yield of the following reaction is consis- tently 87%. CH,(g) + 4 S(g) →CS;(g) + 2…

A: The percent yield of the reaction is = 87 % The required mass of carbon disulfide is = 80.0 g

Q: Calculate the percent composition by mass of each element in NaCIO,. % Na = % % Cl = % O = %

A: %composition of elements in compound is calculated by mass of element in compound divided by total…

Q: a correct mol ratio for the relationship between hydrogen gas and ammonia in the following equation…

A: For determined of mol ratio first required a balance equation. The coefficient ratio of two…

Q: Calculating Percent Composition Directions: For each of the following formulas, determine the…

A: Percent of composition  show percent of each element present in the compound

Q: (8) Per chloric acid (0.200m)(0.125 L) Magnesium carbonate -7 Magnesium chlurate + CO,+ HaO 35.0g…

A: Given: Molarity of perchloric acid=0.200 M Volume of perchloric acid=0.125 L Mass of magnesium…

Q: In one process, 6.05 kg of CaF2 is treated with an excess of H2SO4 and yields 2.35 kg of HF.…

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Q: PERCENT COMPOSITION FROM FORMULAS:  NH4NO3

A: Given :  Find the percent composition of NH4NO3 Formula for % composition is  % by mass = mass of…

Q: 2 NaCl+CaO CaCL+ Na2O What is the theoretical yield of sodium oxide Na2O if 20.0 grams of calcium…

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Q: d) Determine the percentage composition. 1. C6H13OH 2. KCIO3 3. C2H5OH

A: 4NH3 + 5O2--------->6H2O +4NO The given equation is already balanced.

Q: y moles of NH, - 3

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Q: How many moles of Pb(SO4)2 are equivalent to 186.7 g of Pb(SO4)2 (Mw. 399.34 g/mol)?

A: Number of moles = mass /molar mass

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.