A compound consists of 20.3 grams of Carbon, 5.12 grams of Hydrogen, and 7.9 grams of Nitrogen. (a) what is the empirical formula. (b) what is is the molecular formula if the molar mass of the compound is 236.448 g/mol.

Q: A compound is composed of 79.4% carbon, 8.9% hydrogen, and 11.7% oxygen by weight. If it has a molar…

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Q: Ethanol, the alcohol contained in alcoholic beverages, is composed of 52.2% C 13.0% H, and oxygen.…

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Q: A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is:

A: Given: Number of molecules of water = 4.0×1021 molecules   We know that,    1 mole = 6.023×1023…

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

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Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A: The emperical formula can be calculated as follows

Q: A sample of sodium carbonate, Na2CO3, weighs  21.0 g.  Calculate the following quantities.   (a)…

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Q: How many formula units are in 170.6 g of the following substances? (a) Br₂: (b) MgCl₂: (c) H₂O: (d)…

A: We simply convert the mass to moles, and from moles to formula units. We use Avogadro's number to…

Q: An organic compound used as a food additive in beverages and baking powders, is composed of 41.39%…

A: Given  % C  = 41.39 % H = 3.47  % O = 100 -( 41.39 + 3.47 ) %         = 55.14 %  Empirical Formula =…

Q: number of grams

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Q: (a) Determine the number of oxygen atoms and hydrogen atoms in1.00 kg of water. (b) Calculate the…

A: (a) Determination of number of oxygen atoms and hydrogen atoms in 1.00 kg of water is as follows;…

Q: A compound contains 47.08% carbon, 6.59% hydrogen, and 46.33% chlorine by mass; the molar mass of…

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Q: If the empirical formula of a compound is SO3 and the molar mass of the molecular formula is 320…

A: Empirical formula = SO3 Molar mass = 320g/mol

Q: A substance is 10% carbon by mass. If the total mass of substance is 25 grams, (a) what is the mass…

A: It is based on the concentration terms. Here we are required to find the mass of carbon present in…

Q: Calculate the number of molecules present in each of the following samples.(a) 0.800 mol acetylene,…

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Q: Hemoglobin is the oxygen carrying compound found in human blood. It is found to contain 0.3335% iron…

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Q: Give the empirical formula of each of the following compounds if a sample contains the following…

A: To find empirical formula: a).  Given: 0.0130 mol= C 0.0390 mol= H 0.0065 mol= O

Q: Calculate each of the following quantities. (a) mass in kilograms of 4.8  1020 molecules of NO2…

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Q: A binary compound of carbon and hydrogen has the following percentage composition: 82. 66% carbon,…

A: Given a binary compound of carbon and hydrogen. Carbon % = 82.66 %Hydrogen % = 17.34 %

Q: The molar mass of iron is : M(Fe)=56 g.mol^ -1 a) Calculate the number of atoms present in 0.28g of…

A: We have to calculate the number of atoms in 0.28 g of Fe. Also we have to calculate the mass of Fe…

Q: The empirical formula of a compound is SN and its molar mass is 184.32 g/mol. The molecular formula…

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Q: The empirical formula of a compound is CH. If the molar mass of this compound is about 52g, what is…

A: Given: The empirical formula of a compound: CH The molar mass of this compound = 52 g We have to…

Q: Give the empirical formula of each of the following compounds if a sample contains the following…

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Q: and

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Q: the analysis of a compound shows that it contains 5.4 mol c, 7.2 mol h, and 1.8 mol n. what is the…

A: Empirical formula: The empirical formula of a compound is defined as the ratio of the simple…

Q: What is the molecular formula of each compound? (a) Empirical formula CH₂ (μ=42.08 g/mol) (b)…

A: a) Empirical formula = CH2 The Molecular formula can be calculated by the following formula,…

Q: A sample of pure silver has a mass of 15.4 g. Calculate the number of moles in the sample and silver…

A: Given-> Mass of Silver = 15.4 gm

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: A compound is found to contain 39.10% carbon, 7.67% hydrogen, 26.11% oxygen, 16.82% phoshorus, and…

A: Given,

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: Nitrogen dioxide (NO2) is a major component of urban air pollution. For a samplecontaining 4.000 g…

A: Each particular substance holds specific relationship between its molecules and moles depicted using…

Q: ) Determine the empirical formula of a compound that contains sulfur and oxygen. It has

A: Simplest whole number ratio of constituent atoms within the molecule is called empirical formula…

Q: A thimble of water contains 4.0 x 1021 molecules. The number of moles of H2O is:

A: We are given that a thimble of water contains 4.0 × 1021 molecules, and we have to calculate the…

Q: Vanillin, the active component of the flavoring vanilla, has the composition 63.15% carbon, 5.30%…

A: Given:  Percentage of C in compound= 63.15%  Percentage of hydrogen in compound= 5.30%  Percentage…

Q: A compound containing carbon and hydrogen contains 4.75 g of carbon and 0.80 g of hydrogen.  The…

A: Empirical formula is the simplest whole number ratio of the elements present in the molecule while…

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.