2. What is the molar concentration of a solution of LiOH if 65 ml are titrated to an endpoint by 175 ml of a solution of HBr that is .025 M?

0.067 M

Explanation:

LiOH + HBB + H2O

1 mol    1 mol

M(LiOH)*V(LiOH) = M(HBr)*V(HBr)

M(LiOH)*65 mL = 0.025 M*175 mL

M(LiOH) = 0.025 M*175 mL/65 mL = 0.067 M

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

what is the question here. i think you messed up.