How many hydrogen atoms are contained in 1.50 g of glucose (C6H12O6)?

The nucleus of a hydrogen atom consists of

How many grams of NaOH are needed to prepare 100 ml of a 0.5 M aqueous solution of NaOH? (Atomic weights: Na=23, O=16, H=1)

What is the number of atoms in 46 g of sodium-23 (N = Avogadro constant)?

Mass of atom is determined by

Constituents of atomic nucleus are –