How would you calculate the mass of solid sodium hydroxide needed to prepare 0.5 L of 0.1 M NaOH solution?

0.400 M means 0.400 mole of NaOH per liter of solution You want to make 0.100 L of solution You will need 0.0400 mole of NaOH (0.400 mol/L x 0.1 L = 0.0400 mol) 0.0400 mol x 40.0 g/mol = 1.60 g of NaOH Dissole in water and dilute to 100 mL.

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