B and D is out. It cant be A because heat of combustion is substance not compound. So the answer is D.
(N2) = to 65.3 is the right answer plus 21 = 63
Answer:
B, A, C
Explanation:
the awnsers that are displayed are the only options that are new, and clean resorsces, we have always used oil in cars but hybrids are a new consept, same as wind power
Good LUCK!!
We can get the vapor pressure of the solution from this formula:
Pv(solu) = n P°v
when n is the mole fraction of toluene so we can get by substitution in this formula:
n = moles of toluene / (moles of cholesterol + moles of toluene)
= 5.4 / ( 0.99 + 5.4) = 0.85
so by substitution in vapor pressure formula:
∴ Pv(solu) = 0.85 *41 = 34.85 atm
