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A buffer consists of 0.14

A buffer consists of 0.14 M KHCO3 and 0.61 M K2CO3. Carbonic acid is a dirpotic acid with Ka1= 4.5*10^-7 and Ka2= 4.7*10^-11.a)
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2. asked by Justine
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A buffer that consists of a mixture of NaH2PO4 and K2HPO4 has a pH of 6.73. The (HPO4)/(H2PO4) ratio in this buffer is what? If
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2. asked by Anonymous
3. 1,323 views
Is this a buffer system? NH3/(NH4)2SO4?It is formed by mixing NH3 (weak base) and a strong acid (H2SO4), but according to my
1. 3 answers
2. asked by seth
3. 8,286 views
A buffer consists of 0.16 M KHCO3 and 0.39 M K2CO3. Carbonic acid is a diprotic acid with Ka1 = 4.5 10-7 and Ka2 = 4.7 10-11.(a)
1. 5 answers
2. asked by Edward
3. 4,593 views
What is the (H3O+) andthe ph of a buffer that consists of 0.25M HNO2 and 0.69M KNO2? (Ka of HNO2 = 7.1 x 10^-4) is this right?
1. 2 answers
2. asked by patrick
3. 1,229 views
A buffer is made up of .300 L each of .500 M KH2PO4 and .317 M K2HPO4. Assuming tha the volumes are additive, calculatea) the pH
1. 0 answers
2. asked by James
3. 1,161 views
I have trouble how to resist pH in buffer solutions ( in acidic buffer , and in basic buffer ) when we add an acid , and a base
1. 3 answers
2. asked by MAD
3. 615 views
If you add 5.0 mL of 0.50 M NaOH solution to 20.0 mL to Buffer C, what is the change in pH ofthe buffer? (where buffer C is
1. 3 answers
2. asked by Chelsea
3. 5,855 views
Which is the main buffer system found in the ECF?A)HCI /NaOH buffer system B)phosphate buffer system C)CO2 / HCO3 buffer system
1. 1 answer
2. 172 views
Find the pH of a buffer that consists of .28 M NH3 and .12 M NH4Cl (pKb of NH3=4.75)
1. 1 answer
2. asked by Rach
3. 480 views