01.)What is the molecular formula of a compound with the empirical formula As2O5and a formula mass of 459.678 amu?

Q: The formula for disulfur decafluoride is S2F10 . a. How many molecules are in 1.57 grams of disulfur…

A: a) Given: 1.57 g of S2F10. The no of molecules are determined as follows,

Q: 2. A compound has the following chemical formula; CuAl6(PO4)4(OH)8 4 H₂O. Calculate the mass…

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Q: The mass of an organic compound was found to be 58.053 86 by mass spectrometry. Is the sample C₂HN₂,…

A: The solution is given below -

Q: A compound of potassium had the following percentage composition: K 28.73%; H 1.481%; P 22.76%. The…

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Q: The molecular formula for caffeine, one of the key compounds found in coffee and tea, is C8H10N4O2.…

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Q: An ingredient of Tiger Balm salve is composed of C, H and O.  A 0.1005 g sample of the ingredient is…

A: Given :  Weight of sample = 0.1005 g  Weight of CO2 produced = 0.2829 g  Weight of H2O produced =…

Q: A compound was found to contain 115.49g of Ca, 92.16 g of O, and 5.82 g of H. What is the total mass…

A: mass of Ca = 115.49g mass of O = 92.16 g mass of H =  5.82 g  Molar mass of Ca = 40.078 g/molMolar…

Q: a sample of pure alumina hydrate was obtained from a bag of flame retardant. A 5.000g sample of the…

A: Given, Mass of sample = 5.000g. Final weight of sample after heating = 2.651g. The mass of water in…

Q: A sample of a compound with the molecular formula C20H24N2O2 contains 2.75 x 1024 nitrogen atoms.…

A: Molar mass of any substance is the mass of one mole of the substance, which is expressed as g/mol.…

Q: Given the following two formulas representing the same compound. Which statement describes these fo…

A: Given, Formula of compounds Formula A : CH2O Formula B : C6H12O

Q: 12) How many grams of hydrogen are in 22.9 g of C6H12O6?

A: Given information,     Mass of glucose is 22.9 g. There are six moles (or 12 atoms) of hydrogen in…

Q: Calculate the molar mass of Iron(III) chloride hexahydrate: FeCl3• 6H20. O 162.29 g/mol O 180.29…

A: Given  Molar mass of EDTA disodium salt dihydrate = 372.24 g/mole Molar Mass of FeCl3.6H2O Molar…

Q: a) What is the mass of 2.450 x 10²⁴ atoms of tungsten (# 74)? (Be sure to write your units, chemical…

A: The solution is shown in the image below-

Q: You are given a sample that contains a mixture of the following two arsenic-containing minerals:…

A: Given: Mass of mixture = 57.38 g Mass of As2O5 formed = 36.03 g Assuming moles of NiAsS in the…

Q: Methyl tertiary butyl ether, or MTBE, is currently used as an octane booster in gasoline. It has…

A: Answer:- This question is answered by using the simple concept of calculation pecentage composition…

Q: Elemental analysis of a compound with molar mass 214.22 g/mol gives the following mass percent…

A: Given data,Percent of C=72.89%Percent of H=4.71%Percent of O=22.41%Molar mass of…

Q: - Why do we use the "mole" in chemistry. How does it relate to the periodic table? a) What is the…

A: The relationship between mole and mass is as follows:       Mole = Mass Molar mass ⇒Mass =…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: 1- First calculate the moles of compound XBr3  moles of XBr3 = ( moles of Br ) / 3  moles of XBr3 =…

Q: 4NH3(aq) + 50₂(g)→ 4NO(g) + 6H₂O(1) How many grams of water (H2O) will be formed when 34 grams of…

A: The objective of the question is to find out how many grams of water (H2O) will be formed when 34…

Q: Mass analysis of a common drying agent of organic molecules reveals that it has the empirical…

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Q: mass

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Q: What is the mass (in kg) of 692.3 moles of glucose (C6 H12 O6)?

A: The molar mass of a substance is the mass of one mole of that substance. It is determined by adding…

Q: What is the mass percent of silicon dioxide (SiO2) if you are able to separate 2.202g out of a…

A: The mass percentage of a compound in a mixture is equal to the ratio of the mass of that compound…

Q: What is the molecular formula of a compound with the empirical formula CH2 and a formula mass of…

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Q: The molecular formula of remdesivir is  C27H35N6O8P.  How many oxygen atoms are in 7.9739 moles of…

A: Given: Moles of remdesivir = 7.9739 moles

Q: Caffeine (MM = 194.2 g/mol) is a small molecule that many people ingest for its stimulant effects.…

A: Given molar mass of caffeine = 194.2 g/mol percentages C = 49.5℅ N = 28.9℅ H = 5.19℅ O = 16.5 ℅

Q: What is the mass of 5.83 ×1017 molecules of liquid propane, C3H8?

A: Given, Number of molecules of C3H8 = 5.83 x 1017  Molar mass of C3H8 = 44.1 g/mol First, we find the…

Q: the formula for disulfiram decafluoride is S2F10   A.How many molecules are in 1.35 grams of…

A: A.

Q: 74. A throat lozenge contains 5.0 mg of menthol, which has the formula C10H20O. How many moles of…

A: Given : 74. 1. How many moles of menthol are in 5.0 mg of menthol? 2.What is the mass in grams of…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: a) Elemental analysis of an unknown sample shows its mass composition to be 49.45% carbon (C),…

A: a. What is the molecular formula of the unknown compound?Carbon (C)4.12 moles (divide 49.45g to…

Q: What is the mass of 7.10 moles of magnesium chloride, MgCl2? Express your answer with the…

A: 1) The compound given is MgCl2 with moles = 7.10 mol Since molar mass of MgCl2 = Atomic mass of Mg +…

Q: What is the molecular formula of a compound with the empirical formula BBr, and a formula mass of…

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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.