This is a "Exothermic Reaction."
I did the same test and this was the correct answer.
I hope this helps!
If you mean LiOH+HBr->LiBr+H2O
the answer is 0.4347mol LiBr and that equals (10/23)/80 gram LiBr
Control or controlled group is the part of the experiment where conditions are kept the same.
Measured values are verified and go under a series of experiments before being accepted as the norm. Accepted values are unanimously accepted values, seen as the norm by a qualified group of individuals (scientists or the people of the intellectual sphere).