Question

Complete the sentence

one mole of a substance is the relative formula mass in_____

Answer 1

Explanation:

Its symbol is mol. The mass of one mole of a substance is equal to: the relative atomic mass (A r) of its formula in grams if the substance is an element. the relative formula mass (M r) of its formula in grams if the substance is a compound.

Answer 2

One mole of a substance is the relative formula mass in grams.

Explanation:

• Relative formula mass of any compound is determined by using its relative atomic masses.
• Relative atomic mass values of all atoms in the formula is added to calculate  relative formula mass of a compound.
• The link between macro world of grams or kilograms and atoms and molecules is represented by a mole.
• The mass of one mole of any substance is known as molar mass of that substance. It is also called relative atomic mass of the substance.