a) Calculate the molar mass of sucrose, C12H22O11.(b) How many moles of sucrose are present in: (i)1.00 gram; (ii) 1.00 pound, and (iii) 1.00 kg of sucrose?(c) How many sucrose molecules are present in a 4.536-gsampleof sucrose?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter3: Chemical Reactions

Section: Chapter Questions

Problem 156QRT: Ethanol, C2H5OH, is a gasoline additive that can be produced by fermentation of glucose....

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Concept explainers

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.

Question

a) Calculate the molar mass of sucrose, C12H22O11.(b) How many moles of sucrose are present in: (i)1.00 gram; (ii) 1.00 pound, and (iii) 1.00 kg of sucrose?(c) How many sucrose molecules are present in a 4.536-gsampleof sucrose?(d) How many atoms of carbon, hydrogen, and oxygen,respectively, are present in 4.536 g of sucrose?(1 lb = 453.6 g; Avogadro’s number = 6.022 x 1023/mol)

Definition Definition Number of atoms/molecules present in one mole of any substance. Avogadro's number is a constant. Its value is 6.02214076 × 10 23 per mole.

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