00:01
To understand this question, it might be helpful to first write the ksp equilibrium, where we have mnoh, 2 as a solid, dissociating to produce mn2 +, and 2 hydroxides, and there will be a ksp value.
00:24
It didn't provide it, but in the table i have, the ksp value for mn2h2 is equal to 2 x 10 -13.
00:41
Okay, then what will happen to make this more soluble is if we are to add an acid, the acid, represented as hydronium ion, is going to react with the hydroxide created here, and in the process produce two waters, and this has a k value equal to the reciprocal of kw, so it'll be 1 x 10 -14.
01:18
So, if we multiply this reaction by 2, so that our two hydroxides cancel, we need to raise this to the 2, and the overall reaction, which i believe they wanted you to report first, is mnoh2, solid, reacting with 2 h3o +, to produce mn2 +, the two hydroxides cancel, and 4 h2o...
