The triprotic acid H 3 A H3A has ionization constants of K a1 = 2.50 × 10 − 3 Ka1=2.50×10−3 , K a2 = 5.60 × 10 − 6 Ka2=5.60×10−6 , and K a3 = 6.47 × 10 − 12 Ka3=6.47×10−12 . Calculate the H + H+ concentration and the ratio [ H 2 A − ] [ H 3 A ] [H2A−][H3A] for a 0.0570 0.0570 M solution of NaH 2 A NaH2A .

Listen base your answer to the question on the information below.propane is a fuel that is sold in rigid, pressurized cylinders. most of the propane in a cylinder is liquid, with gas in the space above the liquid level. when propane is released from the cylinder, the propane leaves the cylinder as a gas. propane gas is used as a fuel by mixing it with oxygen in the air and igniting the mixture, as represented by the balanced equation below.c3h8(g) + 5o2(g) → 3co2(g) + 4h2o() + 2219.2 kja small amount of methanethiol, which has a distinct odor, is added to the propane to consumers detect a propane leak. in methanethiol, the odor is caused by the thiol functional group (–sh). methanethiol, ch3sh, has a structure that is very similar to the structure of methanol.what is the correct structural formula for a molecule of methanethiol

Acetylene gas c2h2 undergoes combustion to produce carbon dioxide and water vapor how many grams of water are produced by the same amount of c2h2?

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.