Question

How many water molecules are produced when 5.2g O2 are reacted

Answer 1

Answer:

Total number of water molecules produced after the reaction is 1.956×10^22 molecules of water.

Explanation:

By the reaction

H2+ 1/2 O2 → H2O

Moles of O2 = 5.2\32

⇒1 mole of O2 produce 1  mole of H2O

  1 mole O2 will produce 2 mole  of H2O

Therefore, 5.2\32 mole will produce ${2}\times{\frac{5.2}\times{32}}$

⇒ Molecules of H2O  will be

         ${2}\times{\frac{5.2}{32}}$ = $\frac{x}{{6.02}\times{10^23}}$

= 1.956×10^22 moleculesof H2O.