SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following solutions exactly neutralises 25.0 cm3 of 0.05 mol dm-3 barium hydroxide solution?
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25.0 cm3 of 0.10 mol dm-3 sulphuric acid
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12.5 cm3 of 0.20 mol dm-3 nitric acid
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50.0 cm3 of 0.40 mol dm-3 hydrochloric acid
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12.5 cm3 of 0.05 mol dm-3 ethanoic acid
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Explanation:
Detailed explanation-1: -25.0 cm3 0.100 mol/dm3 NaOH solution contains (25/1000)×0.100 = 0.0025 mol NaOH.
Detailed explanation-2: -Sodium Hydroxide 25% Solution is a clear to hazy white liquid. It has no odor. Caustic Soda 25% is produced with Membrane Grade Caustic Soda and contains 24 – 26% NaOH by weight.
Detailed explanation-3: -#moles NaOH = 2M x (25/1000)dm3 = 0.05 mol.
Detailed explanation-4: -Answer: (a) In the titration, 25 cm3 of 0.1 M NaOH solution were used. 1, 000 cm3 of 0.1 M NaOH solution contains 0.1 moles.
There is 1 question to complete.