Section 3. Stoichiometry for Chemistry, IGCSE - revisedeck

3. Stoichiometry

A section of Chemistry, 0620

Listing 10 of 209 questions

The relative atomic mass of chlorine is 35.5. When calculating relative atomic mass, which particle is the mass of a chlorine atom compared to?

0620_w20_qp_21

MCQ

2020

Paper 2, Variant 1

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The relative atomic mass of chlorine is 35.5. When calculating relative atomic mass, which particle is the mass of a chlorine atom compared to?

0620_w20_qp_22

MCQ

2020

Paper 2, Variant 2

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The relative atomic mass of chlorine is 35.5. When calculating relative atomic mass, which particle is the mass of a chlorine atom compared to?

0620_w20_qp_23

MCQ

2020

Paper 2, Variant 3

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Calcium nitrate has the formula Ca(NO3)2. What is the relative formula mass, Mr, of calcium nitrate?

0620_w23_qp_13

MCQ

2023

Paper 1, Variant 3

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The percentage abundances of three isotopes in a sample of neon are shown...

0620_w23_qp_22

MCQ

2023

Paper 2, Variant 2

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What is the relative molecular mass, Mr, of sulfuric acid, H2SO4?

0620_w24_qp_11

MCQ

2024

Paper 1, Variant 1

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What is the relative formula mass of magnesium bromide?

0620_w24_qp_12

MCQ

2024

Paper 1, Variant 2

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A sample of iridium has a relative atomic mass of 192.29. The sample contains two isotopes only. 64.50% of the sample is 193Ir. What is the other isotope in the sample?

0620_w24_qp_23

MCQ

2024

Paper 2, Variant 3

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The concentration of a hydrochloric acid solution is 0.5 mol / dm3. How many moles of hydrochloric acid are present in 25 cm3 of this solution?

0620_m18_qp_22

MCQ

2018

Paper 2, Variant 2

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25 cm3 of 0.1 mol / dm3 hydrochloric acid exactly neutralise 20 cm3 of aqueous sodium hydroxide. The equation for this reaction is: NaOH + HCl → NaCl + H2O What is the concentration of the sodium hydroxide solution?

0620_s16_qp_21

MCQ

2016

Paper 2, Variant 1

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Questions Discovered

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