We are tasked to solve for the volume of the gas that occupies when pressure and temperature changes to 400 Torr and 200 Kelvin from Torr and 400 Kelvin. We can use ideal gas law assuming constant gas composition and close system. The solution is shown below:
P1V1 / T1 = P2V2 / T2
V2 = P1V1T2 / T1P2
V2 = 800*72*200 / 400*400
V2 = 72 ml
The answer for the volume is 72 ml.
Answer:
x = 2+
Explanation:
1) FADH2 + Q => FAD + QH2
Since H is added to Q
=> Reactant reduced is Q
(2) Balancing charges on both sides of the equation gives:
QH2 + 2 cyt c(Fe3+) => Q + 2 cyt c(Fe2+) + 2 H+
Thus x = 2+
Answer:
Explanation:
1. Calculate the molar mass of N₂H₄
2N = 2 × 14 = 28
4H = 2 × 1 = <u> 4</u>
Tot. = 32
2. Calculate the mass percent of N
We consider that the 50% given in this item is by volume. Molarity is the unit of concentration that takes into account the number of moles of the solute and the number of moles of the substance.
number of moles of NaOH = (0.1 moles / L)(0.4 L)
n = 0.04 moles of NaOH
If we are to take the basis of 1 mL of 50% NaOH solution,
(1 mL solution)(1.525 g/mL)(0.50) = 0.7625 g
The number of moles is,
0.7625 g NaOH x (1 mol / 40 g) = 0.01906 moles of NaOH
volume of solution required = (0.04 moles of NaOH)(1 mL solution / 0.01906 moles of NaOH)
volume of solution required = 2.09 mL
Answer: 2.09 mL
Answer is:
1) orbital on C2 is sp2 hybrid orbitals and orbital on Cl is p atomic orbital.
Carbon atom is sp2 hybridized, it has three sp2 orbitals and one p orbital, they form four bonds. Three sp2 orbitals form three sigma bonds. Pi bonds are formed between two p orbitals on C1 and C2 atoms.
In sp2 hybridization the 2s orbital mixes with only two of the three available 2p orbitals.
2) the approximate C1-C2-Cl bond angle is 120°.
