Amount of substance

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Question 9

Medium

Aspirin ( $C9H8O4\text{C}_9\text{H}_8\text{O}_4$ ) is produced industrially by reacting salicylic acid ( $C7H6O3\text{C}_7\text{H}_6\text{O}_3$ , $M_r = 138.0$ ) with ethanoic anhydride. One mole of salicylic acid reacts to produce one mole of aspirin.

Calculate the mass, in kg, of salicylic acid needed to produce $kg450\text{ kg}$ of aspirin. Assume a $100%100\%$ yield.

(Relative atomic masses, $A_r$ : $C=12.0\text{C} = 12.0$ , $H=1.0\text{H} = 1.0$ , $O=16.0\text{O} = 16.0$ )

[3]

Amount of substance

Question 9

Amount of substance Questions

Amount of substance

Question 9

Amount of substance Questions