Equilibrium and K

If K for the following reaction is K= 0.013, what is K for the reverse reaction? HSO4- (aq) ↔ H+(aq) + SO42-(aq)

77

For the reaction of A + B ↔ 2C, if K = 64.5 and A and B are both initially 0.200 M, what is the equilibrium concentration of product C?

.178

For the reaction H2(g) +I2(g) <-> 2HI(g) If initial concentrations of [H2] = 0.050 M M, [I2] = 0.0450M, and [H2] at equilibrium is 0.010 M, what is the value of K?

130

For the reaction H2(g) +I2(g) <-> 2HI(g) if the concentrations at equilibrium at [H2] = 0.020 M, [I2]= 0.32 M , [HI] = 0.40 M, calculate K

25

The equilibrium constant K serves what primary purpose? to judge the extent of the reaction to perform calculation to make things complicated to determine the rate

to judge the extent of the reaction

Given the following K = 2.7 x 10^-5, what is the position of the equilibrium?

It favors reactants

Which of the following statements about equilibrium is not true? is the state in which the rate of a forward process has become equal to a reverse process at equilibrium concentrations become constant will arise when a process is reversible at equilibrium reactant concentrations are equal to product concentrations

at equilibrium reactant concentrations are equal to product concentrations