A compressed-air tank carried by scuba divers has a vol- ume of 6.80 L and a pressure of 120 atm at 20 °C. What is
the volume of air in the tank at 0 °C and 1.00 atm pressure
(STP)?

What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filling it from the bottom up?

Name the element in group 17, period 2. (periodic table)

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.