Question 1
Paper 2Easy6 marksAn ethanol burner used to heat food burns ethanol in a plentiful supply of oxygen. Figure 1 shows the structural formula of ethanol.
(a)[1]
Use Figure 1 to state the molecular formula of ethanol.
(b)[2]
Write a balanced equation for the complete combustion of ethanol.
(c)
A sample of 0.350 mol of ethanol burns completely. Using the equation in (b), calculate each amount in mol to three significant figures.
(i)[1]
Oxygen consumed
(ii)[1]
Carbon dioxide formed
(d)[1]
Identify the oxidizing agent in the combustion reaction.