Percentage purity of a sample of gold is 85%. How many atoms of gold are present in 1g sample? (Atomic mass of Gold =197u) |
|||||||
(a) |
2.6 |
(b) |
2.6 |
(c) |
3.0 |
(d) |
4.5 |
Percentage purity of a sample of gold is 85%. How many atoms of gold are present in 1g sample? (Atomic mass of Gold =197u) |
|||||||
(a) |
2.6 |
(b) |
2.6 |
(c) |
3.0 |
(d) |
4.5 |