Question

What is the molarity of a solution made by dissolving 8.56 g of sodium acetate in water and diluting to 750.0 mL?

Answer 1

0.139 M

Explanation:

Molarity is gm mole solute dissolve per liter of solvent.
The Mol. mass of sodium acetate is 82.0343
Since 82.0343 gm sodium acetate in 1000 ml of water is equal to 1 M molarity.

So,

8.56 gm dissolved in 750 ml of water

hence
`8.56/750*1000/82.0343=0.139`

Hence Molarity of solution is 0.139 M