True or False? Which of the following statements is /are true when a reaction reaches equilibrium at a specific temperature? [boolean10] The concentration of the reactants and products have reached constant values. [boolean11] Both the forward reaction and the reverse reaction are going on at the same rate. [boolean12] Regardless of the initial concentrations of the reactants and products, the same equilibrium concentrations of the reactants and products will be reached assuming the reaction occurs at the same temperature.

The reaction below is allowed to reach equilibrium (eq. #1).  O2 (g)   +   N2 (g)   

The equilibrium constant (Kc) of the reaction   2 NO2  

The pH of a 0.50 M a weak acid (HB) solution is 2.52. What percent of HB dissociated in this solution?

What is the pH of 0.50 M HCN solution? Ka of HCN = 3.3 x 10-10. Round the pH to 2 decimal places.

A patient with T10 paraplegia is discharged from a rehabilitation hospital following 6 weeks of intense rehabilitation. Which of the following pieces of equipment would be the MOST ESSENTIAL to assist the patient with functional mobility? (Slide 24)

Given the following reactions and their equilibrium constants: NOBr (g)  

(C2H5)NH2 is an [type1] and is weakly [type2]

The pH of a 0.25 M a weak acid (HA) solution is 4.07. What percent of HA dissociated in this solution?

This is a short-answer question. Separate your answers into Part (a), (b) and (c). Use equation editor to enter your answer properly where applicable. The following mechanism is proposed for the reaction between NO and Br2:  2 NO (g)  +  Br2 (g)  ↔  2 NOBr (g) Step 1   NO (g)  +  Br2 (g)