Answered: If a sample of CgHsCO2H is found to…

If a sample of CgHsCO2H is found to contain 3.86 · 1020 H atoms how many C6H5CO2H molecules are present? Express your answer in scientific notation.

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter3: Equation, The Mole, And Chemical Formulas

Section: Chapter Questions

Problem 3.114QE

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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

MOLES/GRAMS/MOLECULES T06/S05
If a sample of C6HsCO,H is found to contain 3.86 · 1020 H atoms how many CgH5CO,H molecules are present? Express your answer in scientific notation.
Molar Mass (g/mol)
C6H5CO2H
C atom
H atom
O atom
122.12
12.011
1.0080
15.999
x 10
Avogadro's No. (mol1)
6.022x1023

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