6.2 Quantitative analysis

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Question 6

Ethene burns completely in an excess of oxygen.

$C2H4(g)+3O2(g)→2CO2(g)+2H2O(l)\mathrm{C_{2}H_{4}(g) + 3O_{2}(g) \rightarrow 2CO_{2}(g) + 2H_{2}O(l)}$

At room temperature and pressure, $cm350\,\mathrm{cm^{3}}$ of ethene is mixed with oxygen and ignited. All gas volumes are measured at room temperature and pressure, with the reaction mixture allowed to cool before its final volume is measured. The gases remaining after the reaction have a total volume of $cm3130\,\mathrm{cm^{3}}$ . What is the volume of oxygen in the mixture before it is ignited?

[1]

$cm3130\,\mathrm{cm^{3}}$

$cm3280\,\mathrm{cm^{3}}$

$cm3180\,\mathrm{cm^{3}}$

$cm3150\,\mathrm{cm^{3}}$

Ethene burns completely in an excess of oxygen.

$C2H4(g)+3O2(g)→2CO2(g)+2H2O(l)\mathrm{C_{2}H_{4}(g) + 3O_{2}(g) \rightarrow 2CO_{2}(g) + 2H_{2}O(l)}$

$cm3130\,\mathrm{cm^{3}}$

$cm3280\,\mathrm{cm^{3}}$

$cm3180\,\mathrm{cm^{3}}$

$cm3150\,\mathrm{cm^{3}}$

6.2 Quantitative analysis

Question 6

Markscheme

6.2 Quantitative analysis

Question 6

Markscheme

6.2 Quantitative analysis

Question 6

6.2 Quantitative analysis Questions

6.2 Quantitative analysis

Question 6

6.2 Quantitative analysis Questions