Purchase Solution

How many molecules are in a drop of water?

Not what you're looking for?

Ask Custom Question

How many molecules are contained in one drop (0.050 mL) of water (density 1.0 g/mL)?

Purchase this Solution

Solution Summary

How many water molecules are there in a drop? This is a concept that is poorly understood, difficult to visualize, but relatively easy to calculate.

Solution Preview

To answer this question one must first start with the concept of a mole.

The mole is a number 6.022 x10^23 that can represent anything. This number is known as Avogadro's number. One would like to own a mole of pennies for instance.

The mole is only convenient when speaking ...

Purchase this Solution

Free BrainMass Quizzes
Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.


The quiz helps in revising basic concepts about thermochemistry.

Functional groups in Organic Chemistry

You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.