Question

How many atoms of solid copper will be formed if you start with 2.5 moles of silver, based off the reaction: 2Ag + Cu(NO₃)₂ → Cu + 2AgNO₃

Answer 1

Answer:

7.53*10^23 atoms

Explanation:

Using stoichiometry convert moles of silver to moles of copper.  Based on the equation, for every 2 moles of silver, 1 mole of copper is produced.

Then, convert moles to atoms with Avogadro's number.

$2.5 mol Ag*\frac{1 molCu}{2molAg} *\frac{6.022*10^{23} atoms}{mol}$

Your answer should be 7.53*10^23 atoms.