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Calculate the number of atom in 39.4 g g...

Calculate the number of atom in 39.4 g gold. Molar mass of gold is `197 g "mole"^(-1)`

A

`3.4%`

B

0.34

C

`13.6%`

D

`1.7%`

Text Solution

Verified by Experts

The correct Answer is:
A
`M = ("Volume strength")/(11.2)`
`M = (% (w//v) xx 10)/(GMM), 1 = (% (w//v) xx 10)/34`
So, `% w/v = 3.4 %`
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