What is the molar mass of a substance? the mass in grams of one mole of a substance the number of particles in one gram of a substance the number of moles in one gram of a substance the mass in grams of one particle of a substance

Answer : The correct option is, the mass in grams of one mole of a substance.

Explanation :

Molar mass of a substance : It is defined as the amount of a substance present in one mole of substance. The unit of molar mass is, gram/mole or g/mole.

For example : The molar mass of calcium (Ca) is, 40 g/mole this means that the in one mole of a substance, 40 grams of calcium are present. Or we can say that 40 grams of a calcium present in one mole of a substance.

Hence, the correct option is, the mass in grams of one mole of a substance.

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.