A sealed 22.4L flask contains pure O2 at STP. A second sealed flask contains CH4 at STP. Which of the following statements concerning the molecules in the flasks is/are true? Please provide explanation.

1. The average kinetic energy of the O2 molecules is greater than the av. kinetic energy of the CH4 molecules

2. The av. velocity of the CH4 molecules is greater than the average velocity of the O2 molecules

3. The volume occupied by the gas molecules is small relative to the total volume of the flasks

A) 1 only
B) 2 only
C)3 only
D) 2 and 3
E) 1, 2, and 3.

Answer from each drop-down menu. e characteristics of a borane molecule (bh). the lewis structure and table of electronegativities are given olecular shape is and the molecule is reset next erved. search e a

Which of these conditions most likely produces an unstable isotope?

Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]