Asolution is made by dissolving 9.74 g of sodium sulfate in water to a final volume of 165 ml of solution. what is the weight/weight % or percent by mass of the solute?

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.