19. The temperature of a sample of gas in a rigid steel tank at 30.0 kPa is increased from -100.0°C 35.0°C. What is the final pressure inside the tank?

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.