The standard Gibbs energy of reaction, ÄG°, for the dissociation of phenol is 56.4 kJ mol-1 at 298 K. Calculate the pKa of phenol.

a.

9.88

c.

4.12

b.

22.8

d.

5.24

What happens to water during evaporation? A) It turns gas as it cools. B) It turns to liquid as it cools. C) It turns to solid as temperature decreases. Eliminate D) It turns to gas as the temperature increases.

Which of the following would not increase the rate of most reactions? A. Increasing the temperature B. Lowering the concentration of the reactants C. Removing an inhibitor D. Adding a catalyst

What are natural resources

One of the products of a fermentation reaction is

What is the mass of 0.46 mol of MgCl2

Consider the reaction: 8H2S (g) + 4O2 (g) →8H2O (g) + S8 (g). Δ[H2S]/Δt = - 0.033M/s. Find Δ[O2]/Δt. Δ[H2O]/Δt. Δ[S8]/Δt. Find the rate of the reaction.

At room temperature and pressure what is the volume of one mole of oxygen?

Ibuprofen, a common pain remedy, has an empirical formula of C7H9O and a molar mass of approximately 218.078 grams per mole. What is the molecular formula of ibuprofen?

Copper (cu) is a transition element used in the making of coins. calculate the mass in grams of 0.0420

In 1864, the Solvay process was developed to make soda ash. One step in the process is represented by the balanced equation below.