What is the molarity of a solution that contains 47.8 grams of LiCl dissolved to form 250.0 mL of solution?

Answer 1

Hello, Night.

Molarity is defined as moles oper liter. Let's calculate the number of moles of LiC and then divide by 250ml, which is 0.250L.

Moles LiC is equal to grams LiC divided by it's molar mass.

47.8 grams/42.4g/mole = 1.13 moles LiC. Divide thqat by 0.250 L to obtain moles/liter, the definition of molarity.

1.13 moles LiC/0.250L = 4.51 moles/liter, or 4.51 M.

Bob