Question

calculate how many grams of Nacl is requried for the preparation 0.5molar solution​

Answer 1

Answer:

Answer is 73 gram.

Explanation:

So, one mole of NaCl weighs 58.44 g. A 2.5 M solution is 2.5 moles per liter (Molarity is just the number of moles per liter). Therefore, 0.5 L would contain 1.25 mol. Hence, you would need 1.25 × 58.44 g = 73 g.

Answer 2

Multiply the concentration ( 0.5 mols / Liters ) by the volume of solution you want ( 0.5 Liters ) to find the moles of NaCl you need . 2. Multiply the moles of NaCl by its molar mass ( 58.44 g/mol ) to find the grams of solute needed .