Toluene, c6h5ch3, is oxidized by air under carefully controlled conditions to benzoic acid, c6h5co2h, which is used to prepare the food preservative sodium benzoate, c6h5co2na. what is the percent yield of a reaction that converts 1.000 kg of toluene to 1.21 kg of benzoic acid?

Answer : The percent yield of the reaction is, 91.32 %

Explanation :  Given,

Mass of = 1 Kg = 1000 g

Molar mass of = 92.14 g/mole

Molar mass of = 122.12 g/mole

First we have to calculate the moles of .

Now we have to calculate the moles of .

The balanced chemical reaction will be,

From the balanced reaction, we conclude that

As, 2 moles of react to give 2 moles of

So, 10.85 moles of react to give 10.85 moles of

Now we have to calculate the mass of

The theoretical yield of  = 1325.002 g

The actual yield of  = 1.21 Kg = 1210 g

Now we have to calculate the percent yield of

Therefore, the percent yield of the reaction is, 91.32 %

the answer is definitely c.