Answer
5.86E22 atoms
Work Step by Step
1.The volume of the cube is 1cm cubed since each side is 1 cm and the volume of a cube is the length of one side cubed.
2. The volume (1cm cubed) is then multiplied by the denisty to convel out volume and get grams, therefore the cube weighs 10.5 grams.
3. We know that 1 mol of silver atoms weighs 107.9 grams, therefore we can divide the weight of the cube by the number of grams in one mol of silver atoms.
4. Grams will cancel out with grams in your dimensional analysis and you will be left with 0.0973 moles of silver ions.
5. finally you must multiply this number by Avogadro's number, 6.02E23 and your final answer is 5.86E22.
