During an acid-base titration, the pH of an analyte solution containing HA(aq) is 6.33 and the ratio of [A–]/[HA] is 1.5. What is the Ka of HA? Assume the solution is in its buffering region (close enough to its half-equivalence point).

Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?

Iknow #2 is d. i just need to know why

In pea plants, the allele for tallness (t) is dominant to the allele for shortness (t). in the cross between a tall pea plant and a short pea plant shown below, what is the probability that the resulting offspring will be tall? whats the percent