TNT is manufactured by the reaction of toluene with nitric acid according to the following equation: C7H8 (l) + 3 HNO3 (aq) ---> C7H5(NO2)3 (s) + 3 H2O(l) Calculate the mass of TNT expected from the reaction of 69.0 g of toluene

170. g C₇H₅(NO₂)₃

General Formulas and Concepts:

Chemistry - Stoichiometry

Explanation:

Step 1: Define

RxN:   C₇H₈ (l) + 3HNO₃ (aq) → C₇H₅(NO₂)₃ (s) + 3H₂O (l)

Given:   69.0 g C₇H₈ (Toluene)

Step 2: Identify Conversions

Molar Mass of C - 12.01 g/mol

Molar Mass of H - 1.01 g/mol

Molar Mass of N - 14.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of C₇H₈ - 7(12.01) + 8(1.01) = 92.15 g/mol

Molar Mass of C₇H₅(NO₂)₃ - 7(12.01) + 5(1.01) + 3(14.01) + 6(16.00) = 227.15 g/mol

Step 3: Stoichiometry

= 170.085 g C₇H₅(NO₂)₃

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

170.085 g C₇H₅(NO₂)₃ ≈ 170. g C₇H₅(NO₂)₃

i'm assuming that the correct answer is indeed the first one/ "a"..

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.