You determine that it takes 32.45 mL of the base to neutralize a 25.00 mL sample of your unknown acid solution. The pH of the solution when about 16.23 mL of the base had been added was 4.23, You notice that the concentration of the base was 0.9457 M. What are the Ka and the pKa of this unknown acid

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.

Which description best characterization the motion of particles in a solid