Saved Bookmarks
| 1. |
A piece of Cu weighs 0.635 g. How many atoms of Cu does it contain? |
|
Answer» SOLUTION :No. Of moles of `Cu =("wt. Of Cu")/("at. Wt. Of Cu")` `=(0.635)/63.5 = 0.01` No. Of atoms of Cu = no. Of moles of atoms `xx` AV. CONST `=0.01 xx 6.022 xx 10^(23) = 6.022 xx 10^(23)` |
|