Experimental Chemistry, Measurement, and Data Handling
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A-Level Chemistry Q & A Practice
1 of 5 free exam-style exercises in this topic
KHP (Mr=204.22) reacts 1:1 with NaOH. Calculate the NaOH concentration and approximate percentage uncertainty.
mass KHP
titre
balance uncertainty
burette uncertainty per reading
0.5106 g
24.65 cm³
±0.0001 g
±0.05 cm³
Read initial and final meniscus
1:1 reaction in flask
Select one option.
A
0.01014 mol dm⁻³; 0.43%
B
0.1036 mol dm⁻³; 0.41%
C
0.1014 mol dm⁻³; 0.43%
D
0.1014 mol dm⁻³; 4.3%
E
0.1014 mol dm⁻³; 0.21%
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