HELP ASAP

1 answer:

4 0

Equilibrium constant of a reaction is the ratio of concentrations of the products and the reactants when the reaction is in equilibrium. This value is independent of the concentrations since the conditions are at equilibrium instead it depends on ionic strength and temperature.

First, we write the equilibrium expression.

K = [H2S]^2 / [H2]^2 x [S2]
K = (0.725^2) / [(0.208^2) (1.13 x 10^-6)]
K = 10751545.56 or 1.08 x 10^7

Thus, the answer is A.

You might be interested in

What is latice energy

velikii [3]

The energy required to separate a mole of an ionic solid into gaseous ions

3 0

3 years ago

What is the mass percent of oxygen in sodium bicarbonate (NaHCO3)?

Alenkasestr [34]

The answer is 57.14%.

First we need to calculate molar mass of NaHCO3. Molar mass is mass of 1 mole of a substance. It is the sum of relative atomic masses, which are masses of atoms of the elements.

Relative atomic mass of Na is 22.99 g
Relative atomic mass of H is 1 g
Relative atomic mass of C is 12.01 g
Relative atomic mass of O is 16 g.

Molar mass of NaHCO3 is:
22.99 g + 1 g + 12.01 g + 3 · 16 g = 84 g

Now, mass of oxygen in NaHCO3 is:
3 · 16 g = 48 g

mass percent of oxygen in NaHCO3:
48 g ÷ 84 g · 100% = 57.14%

Therefore, the mass percent of oxygen in sodium bicarbonate is 57.14%.

8 0

3 years ago

20 POINTS PLZ HELP I DONT KNOW WHAT TO DO!!!!!

Charra [1.4K]

Answer: It would be Proteins. So B

Hope this helps!!!

DNA makes RNA which makes Proteins

8 0

3 years ago

An experiment applies heat to a substance and produces a gas that is a new and different substance. Choose the true statement.

sukhopar [10]

I believe it is C; reasoning being that the hint for physical change is," the producing of a gas," chemical "that's new and diff. substance. "

5 0

3 years ago

Sn=0.14 (E) Sn+2 = -0.15(E) Which form of tin is the stronger reducing agent? OS O Sn +2?

fomenos

0.14

Explanation:

I just needed to finish setting up my account

3 0

2 years ago