What is the molar mass of a substance?
o the mass in grams of one mole of a substance
O 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
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Ответ:
The correct answer is: the mass in grams of one mole of a substance
Explanation:
The molar mass of a given substance corresponds to the mass of one mole of this in grams. Corresponds to a physical property of the substance. Example: the molar mass of water (H20) is:
Molar mass H20 = (Mass H) x 2 + Mass 0 = 2 x 1 g + 16 g = 18 g / mol
Ответ: