The number of molecules in 16.0g of oxygen is
The correct option is D 3.01×1023
32 g or 1 mole of O2 = 6.023×1023So, 16 g of O2 = 6.023×1023×1632 = 3.01×1023 molecules
Calculate the number of magnesium ions present in 0.51 g of magnesium chloride?