Calculate the volume of concentrated NaOH solution (which contains 500.00g of NaOH per liter of solution) that you will need to make 1.00L of a 0.100M NaOH solution

2 answers

Use the dilution formula
mL1 x M1 = mL2 x M2

The biggest problem here is that you don't have the M of the NaOH. So change grams NaOH to mols (mols = g/molar mass) and M = mol/L solution then plug into the dilution formula.
L=8