Complete the table based on the molecules given in the first column an

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 NAH2ONaClMgONaNO3CaOH2SO4Al2O3a. 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»

Compund	MM	Molecular mass in grams	No. of Moles	N_A
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

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