25.0cm3 of arsenic acid, H3AsO4, required 37.5cm3 of 0.100 mol/dm3 sodium hydroxide, NaOH, for neutralization

3NaOH(aq)+H3AsO4(aq)—> Na3AsO4(aq)+ 3 H2O(1)

Find the concentration of the acid in g/dm3

You have a sample of a gas that occupies a volume of 17ml at -111 degrees celsius. what volume does the sample occupy at 88 degrees celsius? show all work asap

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

What produces wave a)sound b) heats c)transfer of energy d)vibrations