What mass of solid copper (II) nitrate is needed to make 1.50 L of a 0.750 mol/L solution? (3 Marks)

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution