Assume purity unless otherwise stated. Find out the density and apply it to 1 litre to find out how many grams a litre will weigh. divide this answer by the molecular weight to get the number of moles in a litre
20 percents
No one invented percents.
percents are numbers over 100
They are all the same, fractions can be turned into percents and percents can be turned into fractions. hope that helps :)
Percents are 100 times larger (and that is by definition!).
Percents are basically decimals, and we use decimals as numbers with extra, tiny proportions. Percents are just ways to make those decimals into a whole, more friendlier number. But, percents can also be made with decimals as well.
lawyers use percents when figureing out prices and taxes of houses
Molarity is an indication for concentration.
No, they are not.
The lower the molarity, the lower the concentration. Molarity is a measure of the concentration of a solute in a solution. A lower molarity means there is less solute dissolved in the solution, resulting in a lower concentration of the solute.
Molarity is an intensive property.
Percents are easier since they don't need to be converted. It saves a step.