Complete the table based on the molecules given in the first column and then answer the question given below. Compunds H2O

Question

Complete the table based on the molecules given in the first column and then answer the question given below.

Compund	MM	Molecular mass in grams	No. of Moles	NA
H2O NaCl MgO NaNO3 CaO H2SO4 Al2O3

a. 10 Mole of water = ……. g ……… Molecules 

5 mole of CaO = ….. g …… Molecules 

2 Mole of H₂SO₄ = …. g … Molecules 

1/2 Mole of Al₂O₃ = ……. g …….. Molecules

Answer 1

Compund	MM	Molecular mass in grams	No. of Moles	NA
H2O NaCl MgO NaNO3 CaO H2SO4 Al2O3	18 58.5 40 85 56 98 100	18 g 58.5 g 40 g 85 g 56 g 98g 100g	1 1 1 1 1 1 1	6.022 x 1023 6.022 x 1023 6.022 x 1023 6.022 x 1023 6.022 x 1023 6.022 x 1023 6.022 x 1023 6.022 x 1023

a.  10 Mole of water = 10 × 18 = 180g, 10 × 6.022 × 10²³ Molecules 

5 mole of CaO = 280g, 5 × 6.022 × 10²³ Molecules 

2 Mole of H₂SO₄ = 196g, 2 × 6.022 × 10²³ Molecules 

2- Mole of AlO = 100g, 1/2 × 6.022 × 10²³