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 density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.