Question
In: Chemistry
A buffer solution is made by dissolving .17g of ammonia and 1.07g ammonium chloride in enough...
A buffer solution is made by dissolving .17g of ammonia and 1.07g ammonium chloride in enough water to make 250mL of solution
Detemine molarity of ammonium chloride
Detemine ammonium concentration
Determin solution molarity relative to ammonia
Determine solution pH
Solutions
Expert Solution
molarity of NH4Cl = W*1000/G.M.Wt * volume of solution in ml
= 1.07*1000/53.5*250
= 0.08M
molarity of NH3 = W*1000/G.M.Wt * volume of solution in ml
= 0.17*1000/17*250
= 0.04 M
POH = PKb + log[NH4Cl]/[NH3]
= 4.75 + log0.08/0.04
= 4.75 + 0.3010
= 5.051
PH = 14-POH
= 14-5.051
= 8.949
queen_honey_blossom answered 1 year agoRelated Solutions
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