what mass of sodium hydroxide, NaOH, must be dissolved to make 460 ml of a 1.10 M solution
Molarity = mols/Liter of solution.
You know 1.10 M and you know L (0.460), solve for mols.
Then mols = grams/molar mass
You know mols from above and you know molar mass NaOH, calculate grams. Post your work if you get stuck.