Chapter 2, Problem 90E

Interpretation Introduction

Interpretation:

The number of molecules present in one drop of water if $1.00\text{g}$ of water contains $3.34\times {10}^{22}\text{molecules}$ is to be calculated.

Concept introduction:

The physical property that can be measured is known as physical quantity. Some of the physical quantities are length, time, temperature and amount of substance. There are four basic units in metric system that is liter, grams, meter, second. Unit conversion is a method to convert a unit into another unit which has the same dimension.