Given that the relative molecular mass of copper oxide is 80, what volume of ammonia (measured at STP) is required to completely reduce 120 g of copper oxide? The equation for the reaction is:
`3CuO+2NH_(3) to 3Cu+3H_(2)O+N_(2)`

Explanation

To solve the problem step by step, we will follow these instructions:

### Step 1: Write down the balanced chemical equation.
The balanced chemical equation for the reaction is:
\[ 3 \text{CuO} + 2 \text{NH}_3 \rightarrow 3 \text{Cu} + 3 \text{H}_2\text{O} + \text{N}_2 \]

### Step 2: Determine the molar mass of copper oxide (CuO).
The problem states that the relative molecular mass of copper oxide (CuO) is 80 g/mol.
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