This lesson covers solved numerical problems on molarity, molality, mole fraction, and percentage concentrations to help you ...

Converting between fractions, decimals and percentages is a useful problem-solving skill. The data can be more easily ordered by size when written in the same format. Calculations often give a decimal ...

Percentages are a way to represent a proportion of a number or a shape. Proportion tells you how much of one thing there is in relation to the whole. The word per cent means 'out of 100', so a ...