Methane gas is expanded from an initial volume of 20.5 l at 0.92 atm at 23oc to a final volume of 34.6 l. during the expansion the gas cools to 12.0oc. what is the final pressure?

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.