Answer to Question #144291 in General Chemistry for laiba salman

Question

A standard solution of potassium hydroxide 0.050 mol dm-3 was used to determine the
concentration of a hydrochloric acid solution. 25.00 cm3 of the acid reacted with 37.50 cm3
of the potassium hydroxide solution. Calculate the concentration of the hydrochloric acid.
Suggested method:
Write the balanced equation for the reaction
Note the mole ratio of the two reactants
Calculate the number of moles of potassium hydroxide in the titre (37.50 cm3 )
Consider the mole ratio and determine the number of moles of hydrochloric acid present in
25.00 cm3 and then the number of moles in 1000 cm3 which is the concentration of
hydrochloric acid in mol dm-3

Answer 1

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