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Question 1:For many weak acid or weak base calculations, you can use a simplifying assumption to...

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Chemistry

Question 1:For many weak acid or weak base calculations, you canuse a simplifying assumption to avoid solving quadraticequations.Classify these situations by whether the assumption isvalid or the quadratic formula is required.

HA=.001 Ka=1x10-5

HA=1M Ka = 1x10-3

HA=.01M Ka=1x10-5

HA=.1M Ka=1x10-3

HA=.01M Ka = 1x10-4

Question 2: The Ka of a monoprotic weak acid is 5.20 × 10-3.What is the percent ionization of a 0.189 M solution of thisacid?

Question 3: Phosphoric acid, H3PO4(aq), is a triprotic acid,meaning that one molecule of the acid has three acidic protons.Estimate the concentrations of all species in a 0.350 M phosphoricacid solution. pKa1=2.16 pKa2=7.21 pKa3=12.32

H3PO4 =

H2PO4- =

(PO4)3- =

H+ =

Answer & Explanation Solved by verified expert
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Question 1 only two are valid HA1M Ka 1x103 H x sqrt Ka x C sqrt 103 x 1 00316 percent    See Answer
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