solutions

Question: Which of the following should be done in order to prepare $0.40\,M\ NaCl$ starting with $100ml$ of $0.30M\ NaCl$ (mol. wt. of $NaCl=58.5)$

1) Add $0.585g\ NaCl$

2) Add $20ml$ water

3) Add $0.010ml\ NaCl$

4) Evaporate $10ml$ water

Solution:

Explanation: No Explanation

Methods of expressing concentration of solution

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