Chemistry, asked by athish7, 1 year ago

how many moleculesare present in : a) 9g of water?. b) 17g of NH3?

Answers

Answered by ranjanalok961
8
molecular weight of H2O is 18 gram
many gram of water equal to half mole
1/2 mole of water equal to =6.023×10²³/2=3.011×10²³ molecule

similarly,
molecular weight of NH3 17 gm
so NH3 is 1 mole = 6.023×10²³ mopecule
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