solutions

Question: The number of molecules in $4.25g$ of ammonia is approximately

1) $0.5 imes {{10}^{23}}$

2) $1.5\times {{10}^{23}}$

3) $3.5\times {{10}^{23}}$

4) $2.5\times {{10}^{23}}$

Solution:

Explanation: No Explanation

Methods of expressing concentration of solution

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