A 29.00 mL sample of an unknown H3PO4 solution is titrated with a 0.130 M NaOH solution. The equivalence point is reached when 25.68 mL of NaOH solution is added.

Part A What is the concentration of the unknown H3PO4 solution? The neutralization reaction is

H3PO4(aq)+3NaOH(aq)→3H2O(l)+Na3PO4( aq)

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.

32p and 31p are two isotopes of phosphorus. compare the number if subatomic particles that are present in the atoms of these isotopes.

With carbon dioxide what phase change take place when the temperature decreases from -40c to -80c at 2 atm