You have 7.8 L of a 0.25 M HCl solution. How many moles of HCl does this solution contain? Answer with proper sig figs.

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

What is a difference between a mixture of elements and a mixture of compounds