Question

How many moles of copper are required to produce 10 mol of silver?
Cu(s) + 2AgNO3(aq)----> 2Ag(s) + Cu(NO3)2 (aq)

Answer 1

How many moles of copper are required to produce 10 mol of silver?

$$\mathrm{Cu}(s) + 2\mathrm{AgNO}_3(aq) \longrightarrow 2\mathrm{Ag}(s) + \mathrm{Cu}(\mathrm{NO}_3)_2(aq)$$

**Solution:**

$$\mathrm{Cu}(s) + 2\mathrm{AgNO}_3(aq) \longrightarrow 2\mathrm{Ag}(s) + \mathrm{Cu}(\mathrm{NO}_3)_2(aq)$$

Find the equation of the reaction mole of copper needed to produce 10 moles of silver.

In the ratio of:

$$\frac{n(\mathrm{Cu})}{n(\mathrm{Ag})} = \frac{1}{2}$$ $$n(\mathrm{Cu}) = \frac{n(\mathrm{Ag})}{2}$$ $$n(\mathrm{Cu}) = \frac{10 \text{ mole}}{2} = 5 \text{ mole}$$

**Answer:** 5 mole of copper.