Calculate the number of gram atoms present in the following masses. (i) 12.69 g of hydrogen,(ii) 40.089 g of calcium (Given, atomic mass of H = 1.008 amu and atomic mass of Ca = 40.08 amu)

Calculate the number of gram atoms present in the following masses. (

1.	Calculate the number of gram atoms present in the following masses. (i) 12.69 g of hydrogen,(ii) 40.089 g of calcium (Given, atomic mass of H = 1.008 amu and atomic mass of Ca = 40.08 amu)
Answer» Solution :(i) Number of gram ATOMS of HYDROGEN `=("MASS in GRAMS")/("Gram atomic mass")` `=12.69/1.008 = 12.59` (ii) Similarly, Number of gram atoms of calcium `=(40.08)/(40.08) = 1.000`