Answer
$1.71247\times10^{23}$
Work Step by Step
T=300K,
P=1atm=$1.01325\times10^{5}Pa$
By ideal gas law :-
PV = NRT
So, N=$\frac{101325\times0.007}{300\times8.314}=0.284$
So, n=$N\times6.022\times10^{23}=1.71247\times10^{23}$
College Physics (7th Edition)
by Wilson, Jerry D.; Buffa, Anthony J.; Lou, Bo
Published by
Pearson
ISBN 10:
0-32160-183-1
ISBN 13:
978-0-32160-183-4
Chapter 10 - Temperature and Kinetic Theory - Learning Path Questions and Exercises - Exercises - Page 383: 24
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