A 0.050 M solution of the weak acid HA has [H3O+]= 3.77 x 10-4 M at equilibrium. What is the Ka for the acid?HA(aq) + H2O(l) H3O+(aq) + A-(aq) (Hint: construct the ICE table, Also note that [0.05- 3.77 x 10-4 ]= 0.05)Ka = [H3O+][A-][HA]

A week acid HA, has a Ka = 3.5 x 10-4. What happens to the pH when more HA is added to the solution at equilibrium?HA (aq) + H2O(l)   H3O+(aq)   +  A-(aq)

Carbon-14 has a half-life of 5720 years and decays by a first-order process. If a piece of wood retains only 25% of its original carbon-14, how old is the wood?

What is the pOH of a 0.50 M HNO3 solution? ( pH= -log[H+], HNO3 is a strong acid and completely dissociates in water to produce H+ and NO3-, pH + pOH = 14)

For the reaction           3A(g) + 2B(g) –> 2C(g) + 2D(g)           The following data were collected at a constant temperature. Determine the order with respect to B.(Hint: rate = K[A]n[B]nTrialInitial [A]Initial [B]Initial Rate  (mol/L)(mol/L)(mol/(L·min)) 10.2000.1006.00 x 10-2 20.1000.1001.50 x 10-2 30.2000.2001.20 x 10-1 40.3000.2002.70 x 10-1                      

Cyclopropane is converted to propene in a first-order process. The rate constant is 5.4 x 10-2 hr-1. If the initial concentration of cyclopropane is 0.150 M, what is the half-life of this conversion?(Hint:the first order integrated rate law is ln[A] = -kt + ln[A0], t1/2 = 0.693/k, 1hr = 60 min)

A distribution to corporate shareholders of corporate profits or income, disbursed in proportion to the number of share held is:

True or False? An S corporation is treated the same as a C corporation for tax purposes.

Eve is Howard’s administrative assistant and both work for Lumpy Litter Inc. Howard tells Eve that for certain sexual favors, he will give her an excellent performance review and recommend a raise. This is

True or False? A sole proprietor risks being responsible for many of the obligations that arise in doing business, but does NOT face personal liability for those obligations.