Question

From 32mg of H2O, 10^12 molecules are removed.How many molecules of H2O are left?​

Answer 1

Answer:

1000 molecules of H2O are left

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Answer 2

Answer:

Molecular mass of H2O = 18 gm/mol No of moles of water in 10 g (of watet) =( 10/18) = 0.555 No. of molecules of water in 10 g of water = No. of moles × Avogadro's number = 0.555×6.022 × 10²³ = 3.35 ×10²³ molecules.