Question
(a) Calculate the concentration in mol/dm³ of a solution containing 4.0 g of sodium hydroxide (NaOH, Mᵣ = 40) dissolved in 500 cm³ of solution. [3] (b) A student wants to make 250 cm³ of a 0.1 mol/dm³ HCl solution. What volume of a 1.0 mol/dm³ HCl stock solution should they use? [2]
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