2. Find the volume of gas in each problem below. Assume they are gases at STP, a. 4.35 moles of H2
b. 66.5 grams of O2
C. 0.00245 moles of CO2
d. 5.25 x 1026 molecules of CH4
e. 24.5 g of Cl2

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Which of these conditions most likely produces an unstable isotope?

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.