Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations

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Question 12
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A student investigated the electrolysis of dilute sulfuric acid to produce oxygen gas. The gas was collected in an inverted measuring cylinder.

The figure shows the volume of oxygen gas collected after 5 minutes.

An inverted measuring cylinder used to collect gas, with a circular magnification window showing the scale between the numbers 5 and 6. The closed end of the cylinder is upwards, so the scale numbers are upside down, with 5 closer to the top and 6 closer to the bottom. There are ten equal subdivisions between 5 and 6. The liquid level (meniscus) is located exactly seven subdivisions below the number 5, towards the number 6.

What is the volume of oxygen gas collected? Give your answer to 1 decimal place.

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Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations Questions

  1. GCSE
  2. /Chemistry
  3. /Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations