A buffer solution of volume 100.0 mL is 0.140 m Na2HPO4(aq) and 0.120 m KH2PO4(aq). (iii) What are the pH and the pH change resulting from the addition of 75.0 mL of 0.0100 m NaOH(aq) to the buffer solution

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

What is the area in square meters of 448 g ai foil that has a thickness of 23921 nm? the density is 2.70 g/cm

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?