Answer:
The answer to your question is 0.186 moles of CO₂
Step-by-step explanation:
Data
Volume = 2.7 L
Temperature = 24°C
Pressure = 57.2 kPa
moles of CO₂ = ?
Process
1.- Calculate the moles of Propane, use the ideal gas formula
PV = nRT
n = PV / RT
- Convert temperature to °K
°K = 273 + 24 = 297
- Convert pressure to atm
1 atm ----------------- 101325 Pa
x ------------------ 57200 Pa
x = (57200 x 1)/101325
x = 0.56 atm
- Substitution
n = (0.56)(2.7) / (0.082)(297)
- Simplification
n = 1.512 / 24.354
- Result
n = 0.062 moles
2.- Balanced the chemical reaction
C₃H₈ + 5O₂ ⇒ 3CO₂ + 4H₂O
3.- Calculate the moles of Carbon dioxide
1 moles of C₃H₈ ------------------ 3 moles of CO₂
0.062 moles ------------------- x
x = (0.062 x 3) / 1
x = 0.186 moles
If you start with the tens it will mess up the problem
So first you need to factor and get 8( t-1 ) (2t+1)=0. Then you need to divide both sides by 8 to isolate the equation. 0/8=0 so ( t-1 ) (2t+1)=0. Next set each of the factors = to 0 and get t-1=0 and 2t+1=0. Solve, and get t=1 and t=-1/2. The negative does not apply so you know it takes 1 second for the ball to hit the ground.
Answer:
x+87+92+105+135=540(sum of interior angle of pentagon)
x+419=540
x=540-419
x=121
Step-by-step explanation: