Question

CH4 +2O2 ➡️CO2 +2h2OHow many grams of water can be formed from 88 grams of Methane?

Answer 1

198 g of water (H2O).

Step-by-step explanation:

What is given?

Mass of methane (CH4) = 88 g,

Molar mass of CH4 = 16 g/mol,

Molar mass of water (H2O) = 18 g/mol.

Step-by-step solution:

First, let's convert 88 g of CH4 to moles using its molar mass:

`88\text{ g CH}_4\cdot\frac{1\text{ mol CH}_4}{16\text{ g CH}_4}=5.5\text{ moles CH}_4.`

In the chemical equation you can see that 1 mol of CH4 reacted produces 2 moles of H2O, so let's see how many moles of H2O can be formed by 5.5 moles of CH4, as follows:

`5.5\text{ moles CH}_4\cdot\frac{2\text{ moles H}_2O}{1\text{ mol CH}_4}=11\text{ moles H}_2O.`

The final step is to convert 11 moles of H2O to grams using the molar mass of H2O, like this:

`11\text{ moles H}_2O\cdot\frac{18\text{ g H}_2O}{1\text{ mol H}_2O}=198\text{ g H}_2O.`

The answer would be that we can produce 198 g of water (H2O) by 88 g of methane (CH4).