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secondary 4 | Biology
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Dessy Dayanti
Dessy Dayanti

secondary 4 chevron_right Biology chevron_right Singapore

sorry it's chemistry! I need help for qn b and c

Date Posted: 5 months ago
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Ng Yun Lin Tasha
Ng Yun Lin Tasha's answer
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part a is correct.

part b, always look at the ratio in the equation of the reaction, in this case the ratio of iron(III) oxide produced to carbon dioxide is 1:3, meaning 1mol of iron(III) oxide produces 3mol of carbon dioxide.

part c, if not given in the question, assume it is taken at room temperature. thus 1 mol of carbon dioxide is 24dm^3 of the gas. hence, calculate as follows.