Question
How many grams of MGO are needed to prepare 2.5 L of a 0.5 molarity solution of MGO
Answers
DrBob222
It's MgO. Molarity is defined as mols solute/L solution.
If you want 2.5 L of 0.5 M solution, then you want how many mols? That's mols = M x L = ?.
Then how many grams do you need? That's mols = g/molar mass. You know molar mass (or can calculate it) and you know mols. Substitute and solve for grams MgO. Post your work if you get stuck.
If you want 2.5 L of 0.5 M solution, then you want how many mols? That's mols = M x L = ?.
Then how many grams do you need? That's mols = g/molar mass. You know molar mass (or can calculate it) and you know mols. Substitute and solve for grams MgO. Post your work if you get stuck.