Question

How will u prepare 250ml of 0.05m of sodium carbonate?

Answer 1

Explanation:

solution of sodium carbonate, starting with the anhydrous salt (Na2CO3). Before performing the calculation, we convert the volume, 250 mL, to litres, i.e. 0.25 L.

Answer 2

Correct question:

How will u prepare 250 ml of 0.05 M of sodium carbonate?

Answer:

We can prepare 0.05 M solution by dissolving 1.325 gm of sodium carbonate in 250 ml.

- Given :

Molarity = 0.05

Volume of solution, V = 250 ml

Molar mass of sodium carbonate, M.wt. = 106 gm

- We know that Molarity, M = (w × 1000)/(M.wt × V)

⇒      0.05 = (w × 1000)/(106 × 250)

              w = 1.325 gm

- Thus, by mixing 1.325 gm of sodium carbonate in 250 we can get a 0.05M solution.