Answer: The answer is NOT A. [CO2] / [CO] [O2]
just took the test and I chose A. The test did not tell me the correct answer. Sorry.
Explanation: NOT, I REPEAT NOT: A. [CO2] / [CO] [O2]
To determine the strength of potassium permanganate with a standard solution of oxalic acid.
1.194 mol
(remember to use sig figs!)
Answer:
= 0.030 M
Explanation:
We can take x to be the concentration in mol/L of Ag2SO4 that dissolves
Therefore; concentration of Ag+ is 2x mol/L and that of SO4^2- x mol/L.
Ksp = 1.4 x 10^-5
Ksp = [Ag+]^2 [SO42-]
= (2x)^2(x)
= 4x^3
Thus;
4x^3 = 1.4 x 10^-5
= 0.015 M
molar solubility = 0.015 M
But;
[Ag+]= 2x
Hence; silver ion concentration is
= 2 x 0.015 M
= 0.030 M
