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The ion HPO4–2 has both

How many grams of NaOH(Mr 40) must be added to 100 ml of 0.1M H3PO4 to create phosphate buffer, pH 7.0?I know I'm using
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2. asked by Dilk
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Write a balanced equilibrium equation and kb expression for the reaction of the hydrogen phosphate ion (HPO4^2-) with water.Answ
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2. asked by Anonymous
3. 4,807 views
What is the conjugate acid of HPO4^2-(aq)?A. H3PO4(aq) B. HPO4^2-(aq) C. H2PO4-(aq) D. PO4^3-(aq) E. H3O+(aq)
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2. asked by Tuan Le
3. 902 views
Reverse the reactions. Label the acids and bases on the left-hand side of each of the reversed equations?1. HCl + NH3 => NH4+ +
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2. asked by Alex
3. 652 views
Doing some practice problems, these are a couple of my answers. Are these written correctly?Write the conjugate acid: a)HPO4(2-)
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2. asked by Kevin
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Which of the following has the highest buffer capacity?A. 0.10M H2PO4-/0.10M HPO4 2- B. 0.50M H2PO4-/0.10M HPO4 2- C. 0.10M
1. 2 answers
2. asked by Debbie
3. 4,977 views
Phosphate can act as buffer: H2PO4- HPO4^2- + H+The pKa of this equilibrium is 7.21. What is the ratio of H2PO4- to HPO4^2- at
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2. asked by Uurka
3. 824 views
which of the following has the highest bugger capacity?A 0.10M H2PO4-/0.10M HPO4 -2 B 0.50 M H2PO4-/0.10 M HPO 2- C 0.10 M
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2. asked by ameryss
3. 667 views
which of the following has the highest buffer capacity?A 0.10M H2PO4-/0.10M HPO4 -2 B 0.50 M H2PO4-/0.10 M HPO 2- C 0.10 M
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2. asked by DebC
3. 1,246 views
Suppose you have to prepare 1.00 L of the solution ( KH2 PO4 and Na2 HPO4 pH=7.31) and that this solution must be isotonic with
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2. asked by Pepz
3. 498 views