If the initial concentration of sulfur dioxide is .2M and the equilibrium concentration is .14M, what is the equilibrium concentration of the sulfur trioxide?
A. .24M
B. .06M
C. .1M
D. .07M
B
Since one mole of sulfur dioxide produces one mole of sulfur trioxide, a decrease in the concentration of sulfur dioxide must be matched by a corresponding increase in the concentration of sulfur trioxide.