Blog

The following reaction is thermodynamically favorable (spontaneous) at all temperatures: A(g) +  2B(g)

Determine the Ksp expression for a saturated solution of Mg3(PO4)2.

Solutions of hydrazoic acid dissolve metals to form salts, which are called azides (formerly also called azomides or hydrazoates). Determine the pH of a 0.086 M sodium azide, NaN3 solution.

What is the pH of 4.712 x 10-4 M nitric acid (HNO3) to the correct number of significant figures?

Determine the Ksp expression for a saturated solution of Sr3(PO4)2

Which of the following statements are true about the graphs shown below? The reaction is first order with respect to A The half-life of A is independent of concentration The reaction is zero order with respect to A

A researcher created a buffer solution by adding 75.2 g of sodium cyanate ( NaCNO; Molar mass=65.01 g/mol) to 1.00 L of 0.565 M cyanic acid. What is the pH of the buffer? (Assume no change in volume.)

Use the information provided below to determine which of the following will shift the reaction toward the product side.                    

What is the percent ionization of a 0.178 M formic acid (HCHO2) solution?

Which of the following mixtures will result in the formation of an effective buffer? 0.020 moles hydrofluoric acid, HF and 0.001 moles sodium fluoride, NaF. 0.040 moles ethylamine, CH3CH2NH2 and 0.030 moles ethylammonium bromide, CH3 CH2NH3Br. 0.030 moles formic acid, HCOOH and 0.020 moles sodium hydroxide, NaOH. 0.050 moles nitric acid, HNO3 and 0.030 moles sodium nitrate, NaNO3.