Question

In a decomposition reaction of sodium chlorate into sodium chloride and oxygen gas, how many moles of NaCl will be produced from 10.1 moles of NaClO3 ?

Answer 1

`"10.1 mol NaCl"` can be produced from `"10.1 mol NaClO"_3"` if the reaction goes to completion.

Explanation:

Start with a balanced equation.

`"2NaClO"_3("s")` `stackrel(Delta)rarr` `"2NaCl(s) + 3O"_2("g")`

Multiply the given moles of `"NaClO"_3"` by the mole ratio between `"NaClO"_3"` and `"NaCl"` from the balanced equation, with `"NaCl"` in the numerator.

`10.1color(red)cancel(color(black)("mol NaClO"_3))xx(color(red)cancel(color(black)(2))^1"mol NaCl")/(color(red)cancel(color(black)(2))^1color(red)cancel(color(black)("mol NaClO"_3)))="10.1 mol NaClO"_3`

`"10.1 mol NaCl"` can be produced from `"10.1 mol NaClO"_3"` if the reaction goes to completion.