The diagram shows a titration experiment. dilute acid aqueous alkali Which row about the reaction in the conical flask is correct?

5070_s22_qp_11

MCQ

2022

Paper 1, Variant 1

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25.0 cm3 of 1.0 mol / dm3 sodium hydroxide is titrated with dilute sulfuric acid, using a suitable indicator. 25.0 cm3 of the sulfuric acid is required to reach the end-point. What is the concentration of the sulfuric acid and which indicator is used?

5070_s23_qp_12

MCQ

2023

Paper 1, Variant 2

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In a titration between an acid (in the burette) and an alkali, you may need to re-use the same titration flask. Which is the best procedure for rinsing the flask?

5070_w11_qp_11

MCQ

2011

Paper 1, Variant 1

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In a titration between an acid (in the burette) and an alkali, you may need to re-use the same titration flask. Which is the best procedure for rinsing the flask?

5070_w11_qp_12

MCQ

2011

Paper 1, Variant 2

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In a titration between an acid (in the burette) and an alkali, you may need to re-use the same titration flask. Which is the best procedure for rinsing the flask?

5070_w15_qp_11

MCQ

2015

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A student titrates aqueous sodium hydroxide from a burette with dilute hydrochloric acid in a conical flask. After the titration is complete, the conical flask is emptied. What is the correct procedure before the next titration?

5070_w18_qp_11

MCQ

2018

Paper 1, Variant 1

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A student needs to measure 17.60 cm3 of hydrochloric acid. The student has access to the apparatus commonly found in a school laboratory. Which piece of equipment should be used to measure the 17.60 cm3 of hydrochloric acid?

5070_w20_qp_11

MCQ

2020

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During a titration experiment, an acid is transferred into a burette. The diagrams show part of the burette at the start of the titration and at the end-point. start of titration / cm3 end-point of titration / cm3 What is the volume of acid used during the titration?

5070_w20_qp_12

MCQ

2020

Paper 1, Variant 2

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In a titration, 25.0 cm3 of aqueous sodium hydroxide is transferred into a conical flask. A few drops of indicator are added. Dilute hydrochloric acid is then added to the flask until the end-point is reached. Which pieces of apparatus are used to measure volume in this experiment?

5070_w21_qp_12

MCQ

2021

Paper 1, Variant 2

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A student titrates aqueous sodium hydroxide with 0.1 mol / dm3 hydrochloric acid. The titration results are used to calculate the concentration of the aqueous sodium hydroxide. Which row is correct?

5070_w24_qp_11

MCQ

2024

Paper 1, Variant 1

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