A Student Determined the Equilibrium Concentration in the Following Equation $\times$

question 26

Multiple Choice

A student determined the equilibrium concentration in the following equation by neglecting the x term in the denominator.Was the student justified in this approximation? Why or why not? K = 4.0 $\times$ 10^-2 =

• A)Yes,the concentration > K,so the x can be ignored.
• B)Yes,the value of x determined in this way is less than 0.05,so it can be ignored.
• C)No,the value of x determined in this way significantly reduces the denominator.
• D)No,the value of x can never be ignored in solving an algebra problem.
• E)No,the value of K is much less than 1 so x cannot be ignored.