MediumChemistryHigh School (9–10)GeneralMetals and Non-metals › Reactions and the Reactivity SeriesNumericalBoard Exam
24 g of sulphur is burnt in oxygen: S + O₂ → SO₂…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
of sulphur is burnt in oxygen: . Find the mass of sulphur dioxide made and the mass of oxygen used. Use and .
Need a reminder? The key ideaShow
Non-metals burn to give oxides that are mostly acidic: gives carbonic acid, sulphurous acid. Some, such as CO and water, are neutral. Non-metals tend to gain electrons, so they do not give hydrogen with acids.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Moles. .
Step 2. Sulphur dioxide. .
Step 3. Oxygen. .
Check. .
Answer: of ; of oxygen.
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