Consider the following reaction and associated equilibrium constant:

aA$($g$)$bB$($g$),$ Kc$=2\mathrm{.}7$

$($a$)$ Find the equilibrium concentrations of A and B for a$=1$ and b$=1.$ Assume that the initial concentration of A is $1\mathrm{.}0$ M and that no B is present at the beginning of the reaction.

Express your answers in molarity to two significant figures separated by a comma.

$[$A$],[$B$]=\_\_\_$ M

$($b$)$ Find the equilibrium concentrations of A and B for a$=2$ and b$=2.$ Assume that the initial concentration of A is $1\mathrm{.}0$ M and that no B is present at the beginning of the reaction.

Express your answers in molarity to two significant figures serparated by a coma.

$[$A$],[$B$]=\_\_\_\_\_$ M

$($c$)$ Find the equilibrium concentrations of A and B for a$=1$ and b$=2.$ Assume that the initial concentration of A is $1\mathrm{.}0$ M and that no B is present at the beginning of the reaction.

Express your answers in molarity to two significant figures separated by a comma.

$[$A$],[$B$]=\_\_\_\_$ M