Question

Part A ) Calculate the pH of 0.20 M NH3 (Kb=1.8×10−5).

Express your answer using two decimal places.

Part B) Calculate the concentrations of all species present in 0.20 M NH3 (Kb=1.8×10−5).

Express your answers using two significant figures separated by commas. Enter the concentrations of the species in the order listed below.

[NH4+],[NH3],[OH−],[H3O+] = ?,?,?,?

Answer 1

() + H20 HN NHU +OHO O- 3om E: O-20-2 1-8 xLo-5 2 O-20-0 O-20- Q2 -8x10-S V> 2 O-20 =O 1-8 x105 u b8100 -0 00.01 07 C810 poH 2-73a4 pH +POHS 14 THO 5.2956 x1O-2 pH= 11- 761>

Past A: PH11- 6 Part B) [oHuO] o-00189 m NH3 O48 1 1 M Tou1 0-oo129 m m [H3 O01 5-29 55 xO
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