Embibe Experts Solutions for Chapter: Some Basic Concepts of Chemistry, Exercise 1: Assam CEE 2017

The number of molecules of $8 \mathrm{g}$ of oxygen gas at NTP is

The number of atoms present in $0.05 \mathrm{g}$ of water is:

The amount of oxygen produced on heating $61.3 \mathrm{g}$ of ${\mathrm{KClO}}_3$ is

The number of water molecules in a drop of water weighing $0.05 \mathrm{g}$ is

A gaseous mixture contains ${\mathrm{O}}_2$ and ${\mathrm{N}}_2$ in the ratio of $1:4$ by weight. The ratio of their number of molecules is