At 25°C, the equilibrium constant Kc = {K} for the reaction…

At 25°C, the equilibrium constant Kc = {K} for the reaction  B(aq) + C(aq)  ↔  2A(aq)     A solution of 0.80 M of B and 0.80 M of C is mixed and allowed to come to equilibrium. What is the equilibrium concentration of A? Answer format:  Enter 2 significant digits and only the number, no units.  Do not use scientific notation.

The half-life of caffeine is 5.0 hours on average in humans…

The half-life of caffeine is 5.0 hours on average in humans and the decay is a first order process.  Suppose a person drank a beverage with {m} mg of caffeine.  How many mg of caffeine will be left after {t} hours? Answer format:  no units, no scientific notation