Answer: Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:(-2,9)
Equation form: x=-2 y=9
Step-by-step explanation:
Point Form:(-2,9)
Equation form: x=-2 y=9
Answer:
Step-by-step explanation:
Given
See attachment for complete question
Required
Probability that 2 of 3 use sunscreen
From the attached data, we have:
Events where 2 of the 3 uses sunscreen is:
--- i.e. where 0 -5 represents sunscreen
So, the required probability is:
Answer:
Step-by-step explanation:
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
Answer:
1. Is
2. Is
3. Is not
4. Is not
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