110k views
4 votes
If you start with 36.0mL of C4H10 gas at STP, how many grams are of CO2 can you produce if you have excess oxygen gas?

User Ademers
by
5.1k points

1 Answer

4 votes

Answer:

Mass of CO₂ = 0.352 g

Step-by-step explanation:

Given data:

Volume of C₄H₁₀ = 36.0 mL(36/1000 =0.036 L)

Temperature = 273 K

Pressure = 1 atm

Mass of carbon dioxide produced = ?

Solution:

Chemical equation:

2C₄H₁₀ + 13O₂ → 10H₂O + 8CO₂

Number of moles of C₄H₁₀ :

PV = nRT

n = PV/RT

n = 1 atm × 0.036 L / 0.0821 atm. L / mol. K × 273 k

n = 0.036 atm. L / 22.4 atm. L / mol

n = 0.002 mol

C₄H₁₀ : CO₂

2 : 8

0.002 : 8/2×0.002 = 0.008 mol

Mass of CO₂:

Mass = number of moles × molar mass

Mass = 0.008 mol × 44 g/mol

Mass = 0.352 g

User Wiesion
by
5.2k points