ICSE Class 10 Chemistry 2017 Solved Paper

A gas cylinder can hold $1 {\kg}$ of hydrogen at room temperature and pressure :

Question : 62 of 86

Marks: +1, -0

Find the number of moles of hydrogen present.

Solution:

No of moles of hydrogen

\;=\;{\;\text " wt.of hydrogen in gms "\;}/{\;\text " gm mol.mass "\;}

\;=\;{1000}/{2}=500 \;\text " moles. "\;

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