Calculations with equations involving solutions
1 mark · NormalWhich of the following shows the correct mass of sodium chloride produced when 0.020 mol of hydrochloric acid, HCl, reacts with excess sodium hydroxide, NaOH? (Ar: Na = 23, Cl = 35.5)
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Correct option: 1.17 g
Common mistakes: Not multiplying moles by correct Mr; wrong amount
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Marking points
A1 · 1 mark · Selects 1.17 g as correct answer.
Worked solution
NaCl Mr = 23 + 35.5 = 58.5