Answer:
ΔG° = 80 Kj/mole
Explanation:
ΔG° = -R·T·ln(Kw)
R = 0.008314 Kj/mol·K
T = 25°C = 298K
Kw = 1 x 10⁻¹⁴
ΔG° = -R·T·ln(Kw) -(0.08314Kj/mol·K)(298K)ln(1 x 10⁻¹⁴)
= -(0.008314)(298)(-32.2)Kj/mole
= 79.78Kj/mole ≈ 80Kj/mole (1 sig.-fig.)
Answer:
<h2>Density = 0.5 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
<h3>
</h3>
From the question
mass = 60 g
volume = 120 mL
Substitute the values into the above formula and solve
That's
<h3>
</h3>
We have the final answer as
<h3>Density = 0.5 g/mL</h3>
Hope this helps you
Pressure of the nitrogen gas is 2290 kPa.
<u>Explanation:</u>
Using the ideal gas equation, we can find the pressure of the gas using the equation as,
PV = nRT
Where P is the pressure = ?
V is the volume = 3,456 ml = 3.456 L
n is the number of moles = = = 3.2 mol
R is the gas constant = 0.08205 L atm K⁻¹ mol⁻¹
T is the temperature = 25 + 273 = 298 K
Now, rewriting the equation, we will get,
P =
=
= 22.6 atm
Now Pressure in 22.6 atm is converted as 2290 kPa.
Thank you for posting your question. Below is the answer. I hope it helps.
<span>P4(s) + 10 Cl2(g) → 4 PCl5(g)
P4 + 5 O2 → 2 P2O5
(186 g P4) / (123.8950 g/mol) x (2/1) x (141.9447 g/mol) = 426 g P2O5 </span>
It's not really possible to tell longitudinal vs. transverse in this image as given. However, we can say that the waves labeled A are high-frequency (short wavelengths) while the waves labeled B are low-frequency (long wavelengths). So, this third answer choice would be correct here.