Hi, Can you help me on doing the steps to answer this problem?

Given:

Mass of Salt = 10 grams

Total Volume = 1 litres

--> the salt is dissolved into this volume to make a solution.

pH of the Solution = 13.07

--> salt is completely ionized in the solution.

Required: Molecular Weight of the salt.

Correct me: (given the mass; we need to find the number of mole)

Step 1 - find concentration using the pH.

pH = -log[A], where [A] is the concentration of the solution.

Step 2 - find the number of moles is the solution.

n (# of moles) = Volume (total volume) x Molarity (from step one)

Step 3 - find the molecular weight by dividing the mass by the number of moles.

MW (molecular weight) = mass divided by the # of moles.