Question

Trinitrotoluene (C-H5N306, 227.1 g/mol) is easily detonated. How many grams of carbon are in 57.6 grams of TNT? Avogadro's Number: 1 mole = 6.02 x 1023 species A. 403 g B. 57.6 g C. 21.3 g D. 1.78 g E. None of the above

Answer 1

Answer: The correct answer is Option C.

Step-by-step explanation:

The chemical formula for trinitrotoluene is
`C_7H_5N_3O_6`

In 1 mole of TNT, 7 moles of carbon atom, 5 moles of hydrogen atom, 3 moles of nitrogen atom and 6 moles of oxygen atom are present.

We know that:

Mass of trinitrotoluene = 227.1 g/mol

Mass of carbon = 12.01 g/mol

We are given:

Mass of TNT = 57.6 grams

To calculate the mass of carbon in given amount of TNT, we apply unitary method:

In 227.1 grams of TNT, amount of carbon present is =
`(7* 12.01)=84.07g`

So, in 57.6 grams of TNT, the amount of carbon present is =
`(84.07g)/(227.1g)* 57.6g=21.3g`

Hence, the correct answer is Option C.