2. Calculate the pH of a solution prepared by dissolving 0.850 mol of NH3 and 0.300 mol of NH4Cl in water sufficient to yield 2.00 L of solution. The Kb of ammonia is 1.77 x 10-5.

pH = 9.70

Explanation:

It is possible to answer this question using Henderson-Hasselbalch formula:

pH = pka + log [Base] /[Acid]

Base is NH₃ and acid NH₄⁺

Molarity of the compounds is:

NH₃: 0.850mol / 2.00L = 0.425M

NH₄⁺: 0.300mol / 2.00L = 0.150M

To find pka:

Ka×Kb = Kw

Ka = 1x10⁻¹⁴ / 1.77x10⁻⁵ = 5.65x10⁻¹⁰

pKa = -logKa = 9.25

Replacing:

pH = 9.25 + log [0.425] /[0.150]

pH = 9.70

I hope it helps!

c)red bank

explanation:

red bank is a borough in monmouth county, new jersey, incorporated in 1908 and located on the navesink river, the area's original transportation route to the ocean and other ports.

where are the choice options?