Chemistry: Stoichometry

Question

Construct a BCA table based on the reaction below if 0.210 moles of C3H8 are combined with

0.900 moles of O2.

C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O(g)

Calculate the mass of CO2 gas that should theoretically be formed in question 1 based on your BCA

table.

Answer 1

C3H8(g) + 5 O2(g) ==> 3 CO2(g) + 4 H2O(g)

0.210...........0.900................0......................0.............B

-0.180........-0.900...............+0.540...........+0.72.........C

0.030.............0.....................0.540.............0.720........A

Mass of CO2 = 0.540 mol x 44 g/mol = 23.8 g CO2