Question

The volume of a drop of a rain was found to be 0.448 ml at STP . How many molecules of water and no of atom of hydrogen are present in this drop

Answer 1

Answer:   2

Explanation:

Volume of rain drop at STP = 22.4 L

Number of molecules in 22400 mL = 6.022××1023 molecules

Number of molecules in 0.448 mL = 6.022×102322400×0.448 =0.00012044 molecules6.022×102322400×0.448 =0.00012044 molecules

Number of hydrogen atoms  = 2