A0.8525 g sample of an unknown acid requires 55.69 ml of 0.1189 m naoh for neutralization to a phenolphthalein end point. there are 1.43 ml of 0.1027 m hcl used for back-titration. how many moles of h+ are there in the solid acid?

In which phase(s) do the molecules take the shape of the container?

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

Which of the following describes the entropy change as a solution is made from a liquid and solid