Answer:
a. 11
b. 9
Step-by-step explanation:
thats the answer
The diameter is about 25.47, SO B!!!
9, because 84 - 3 is 81 and then 81 divided by 9 is 9.
Answer:
Replace the variable x with −1
in the expression.
f(−1)=−(−1)²−1
Simplify −(−1)²−1.
Remove parentheses.
−(−1)²−1
Multiply −1 by (−1)²
by adding the exponents.
(−1)³−1
Raise −1 to the power of 3.
−1−1
Subtract 1 from −1.
−2
Step-by-step explanation:
Hope it's right
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