How many carbon atoms are contained in each of the following number of moles: (a) 2.00 mol; (b) 6.00 mol; (c) 0.500 mol; (d) 25.0 mol?

Q: Calculate, to the correct number of significant figures, how many molecules of Sg are contained in…

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Q: (a) In the certain hydrated salt MSO3-4H2O, the mass percentage of H2O is 44.71%. Identify the…

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: 6.15×1023 KK atoms Express your answer using three significant figures.    How many moles of atoms…

A: We know 1mole = 6.022x1023  So we can easily find the number of moles by using- Number of…

Q: Write the chemical formula for 1 mol of compound X containing 2 mol Al and 3 mol O.   X= ?

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Q: 77. A binary compound of boron and hydrogen has the following percentage composition: 78.14% boron,…

A: Determination of empirical formula The percentage composition of elements present in given compound…

Q: A compound containing copper, phosphorus, and oxygen has been analyzed and has been found to have…

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Q: How many molecules are in 28.0 g of isopropyl alcohol C3H8O?

A: The formula of isopropyl alcohol is C3H8O Hence molar mass of C3H8O = Atomic mass of C X 3 + Atomic…

Q: An elemental analysis of a 0.3285 g of a compound containing C, H, O and S undergo combustion and…

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Q: How many molecules are in 28.0 g of isopropyl alcohol C3H8O?

A: The formula of  isopropyl alcohol is C3H8O Hence molar mass of C3H8O is  Molar mass = Atomic mass of…

Q: Glycine, an amino acid used by organisms to make proteins,is represented by the following molecular…

A: Glycine is the simplest amino acid present. It is made up of an amine group and one carboxylic group…

Q: a) Determine molecules of C5H5N in 16.00 g of C5H5N (molar mass = 79.11g/mol). b) Explain how the…

A: a) Given : Mass of C5H5N = 16.00 g And molar mass of C5H5N = 79.11 g/mol.

Q: 4NH3(g) + 502(g) 4NO(g) + 6H2O(g) When 8.7 moles of ammonia reacts, determine the mass of water…

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Q: A student performed an experiment to determine the empirical formula of aluminum chloride. In this…

A: (a)Since Al is completely reacted, the mass of Al in the aluminum chloride formed during the…

Q: 1. (a) For the double displacement reaction and find the mole ratio between the product and…

A: Double displacement reaction is a reaction in which exchange of ions occurs between the reactants to…

Q: What is the mass percentage of O in CO2? Provide an answer to two decimal places.

A: Given,  The mass percentage of O in CO2 is:

Q: A crucible is placed on a balance and is found to have a mass of 26.639 grams a sample of…

A: Since on heating the compound, the mass of water will be lost as it will get vaporised  Hence the…

Q: A compound contains 78.14% B and 21.86% H by mass and has a molar mass of 27.67 g/mol. What is the…

A: mass % of B = 78.14 %mass % of H = 21.86 % mass of hydrogen in 1 mole (27.67 g) of the compound = ?

Q: a compound contains 47.08% C, 6.59% Hydrogen and 46.33% Cl by mass. The molar mass of the compound…

A: T

Q: Without using a calculator, which has the greater mass: One mole of carbon atoms or one mole of…

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Q: (a) How many moles of CO, contain 3.26x1024 molecules? mol CO2 4.0 (b) What number of moles is…

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Q: Consider the reaction: 2CH4(g) + O2(g) – 2C0(g) + 4H2(g) Assuming complete reaction, how many moles…

A: The balanced equation is  2CH4   +   O2   -------- >   2 CO   +   4 H2  from the reaction 1 mole…

Q: The molar mass of carbon dioxide (CO2) is 44 g/mol. What is the mass of 6 moles of carbon dioxide?

A: Molar mass of a substance can be defined as the mass of 1 mole of the substance. It is expressed as…

Q: (c) An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by…

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Q: 71.071.0 mol of P4O10P4O10 contains how many moles of PP?

A: Given,Moles of  P4O10 = 71mol

Q: 3. A compound's moleeular mass is 480 g/mol. Its percentage composition is 60% sulfur and 40%…

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Q: 1.Ibuprofen is a compound used in painkillers. When a 2.174 g sample is burned in an excess of…

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Q: If you have 2.00x10^12 atoms of an element and it weighs 3.94x10^-10g, answer the following…

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Q: A compound's molar mass is 400 g/mol. Its percentage composition is 75.00% carbon, 5.05% hydrogen,…

A: Given: Molar mass of compound = 400 g/mol. Mass % of C = 75.00 % Mass % of H = 5.05 % And mass % of…

Q: (a) what is Avogadro’s number, and how is it related to the mole? (b) What is the relationship…

A: We have to show the correlation between  Avogadro’s number and number of moles. Also we have to show…

Q: Table salt, NaCl(s), and sugar, C,,H„0(s), are accidentally mixed. A 5.50 g sample is burned, and…

A: Balanced Combustion reaction of sugar:  C12H22O11 + 12O2 .....> 12CO2 + 11H2O Mass of sample =…

Q: Glucose or blood sugar (C6H12O6) could be a six-carbon sugar (hexone). It serves as an energy from…

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Q: How many moles of NaOH do I have, if I have 16.05 mL of NaOH?

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Q: b) C5H12= (c) Sc2(SO4)3 (d) CH3COCH3 (acetone)

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Q: The empirical formula for a compound is CHN. What is the molecular formula of this compound if 0.1…

A: Simplest whole number ratio of atoms present in a compound is called empirical formula  Empirical…

Q: 6. When a 10.0 g sample of an unknown organic acid (Contains C, H, O) is subjected to combustion…

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Q: How many molecules of butane (C,H10) are contained in the following number of moles: (a) 4.80 mol;…

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Q: containing chromium, Cr; chlorine, Cl; and oxygen, O, is analyzed and found to be 33.6% chromium,…

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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.