If I am given the value of either Ka or Kb of a polyprotic acid, how...
If I am given the value of either Ka or Kb of a polyprotic acid, how do I know if the compound is acidic or basic in solution? What are the criteria? Could you give an example? Thanks in advance
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If I am given the value of either Ka or Kb of a polyprotic acid,
how...
Please help? I know the solution will be acidic because Kb of acetate > Ka of...
Please help?
I
know the solution will be acidic because Kb of acetate > Ka of
Al(H2O)6^3+, but I don't understand why you would even compare the
Kb with the Ka
3. When dissolved in water, will aluminum acetate produce an acidic, basic, or neutral solution? Explain. Ka for Al(H20)63+ = 1.4 x 10-5 Ka for HC2H302 = 1.8 x 10-5
QUESTION 3 Аркы B. Polyprotic C. Lewis Acid D. Proton E. Hydronium F. 7.00 Matching! The...
QUESTION 3 Аркы B. Polyprotic C. Lewis Acid D. Proton E. Hydronium F. 7.00 Matching! The name for the polytomic ion H307 In a reaction, the compound that accepts the electron pair Acids and conjugate bases always differ by a ka If the pOH is high, the solution is (acidic / basic). Numerical value for Kw The higher the value of Kz, the stronger/weaker) the acid is. 4 Ba(CH3COO)2 is a[n) (acidic/basic/neutral) salt in water. NH4Br is ain) (acidic/basic/neutral) salt...
Writing polyprotic acid and base reactions: 1. Write all the dissociations for the three polyprotic acids:...
Writing polyprotic acid and base reactions: 1. Write all the dissociations for the three polyprotic acids: H_2CO_3, H_3AsO_4, H_3PO_4. Match the appropriate Ka1, Ka2, Ka3 values to the dissociation reaction. 2. Identify all the species in each of the reactions as either an acid, a base, or amphoteric. Imagine putting NaH_2AsO_4 in solution. This is a salt. Describe, using chemical equation, exactly what happens? First write the dissociation reaction of the salt. Then identify the pH active species, and then...
How do I know if an ion is basic or acidic? Could someone explain how do...
How do I know if an ion is basic or acidic? Could someone explain how do I determine that? Or is it perhaps a list I need to memorize? Thanks in advance
I need help! 68 14.7 Polyprotic Acids in acid (H,PO 14.7 CN- -.15 c. NaCN K...
I need help!
68 14.7 Polyprotic Acids in acid (H,PO 14.7 CN- -.15 c. NaCN K for HCN is 6.2 X 10-10 d. (CH3)2NHCI Kb for (CH3)3N is 5.3 X 105 e. (CH3)2NHCN f. Cu(CIO4)2 10. In aqueous solution, ammonia reacts according to the following INT 9. Consider an aqueous solution of each o neutral, acidic, or basic. If the solutions are acidic or basi -HOL an aqueous solution of each of the following salts. For each salt, state whether...
Hey guys, I am having a lot of trouble with my homework. Could you please help?...
Hey guys, I am having a lot of trouble with my homework. Could
you please help? I thumbs up anyone who gives a thorough
explanation and shows the work! I really need to understand these
concepts!
Thanks in advance!
1) At 25 °C, the pH of a 0.15 M aqueous solution of CsZ (the cesium salt of HZ) is 10.70. What is the Ka for HZ? 2) Calculate the pH of 0.586 M anilinium hydrochloride (C6H5NH3CI) solution in water at...
Hey guys, I am having a lot of trouble with my homework. Could you please help?...
Hey guys, I am having a lot of trouble with my homework. Could
you please help? I thumbs up anyone who gives a thorough
explanation and shows the work! I really need to understand these
concepts!
Thanks in advance!
1) The Ka for HCN is 4.9 ~ 10-10. What is the value of Kb for CN-? 2) Using the data in the table for 0.10 M aqueous species at 25 °C, which conjugate base below is the weakest base? Explain...
please help >< Polyprotic acids have more than one proton to donate to water, therefore have...
please help ><
Polyprotic acids have more than one proton to donate to water, therefore have more than one equilibrium constant for proton donation. For phosphoric acid, there is a three-step equilibrium: H, PO +H,0 5 H2PO4 + H30* H,PO," +H,0 5 HPO - +H30* HPO 2- +,0 5 PO.- +,0* Kai = 7.11 x 10-3 Ka2 = 6.32 x 10-8 Ka; = 4.5 x 10-13 For all conjugate acid base pairs: K, XKK where K is for the reaction...
A) The Ka of a monoprotic weak acid is 2.29 × 10-3. What is the percent...
A) The Ka of a monoprotic weak acid is 2.29 × 10-3. What is the percent ionization of a 0.129 M solution of this acid? I got 104.8% which I know is impossible. B) The Ka value for acetic acid, CH3COOH(aq), is 1.8× 10–5. Calculate the pH of a 2.40 M acetic acid solution. C) Calculate the pH of the resulting solution when 4.00 mL of the 2.40 M acetic acid is diluted to make a 250.0 mL solution. I...
D. 5.0x106 1. If the Ka for HBrO is 2.0x10' what is the Kb of Bro...
D. 5.0x106 1. If the Ka for HBrO is 2.0x10' what is the Kb of Bro A. 1.0x10-14 B. 2.0x109 C. 5.0x10-24 ture, puts the acids in the order of most acidic to 2. Choose the list which, based on structure, puts the acids in least acidic. A. HF > HCI > HBr > HI B. CC13-COOH > CCl2H-COOH > CCIH-COOH > CH3-COOH C. HCIO > HCIO > HCIO3 > HCIO4 D. B(OH)3 > NH3 > H2O > HF 3....
Please help?
I
know the solution will be acidic because Kb of acetate > Ka of
Al(H2O)6^3+, but I don't understand why you would even compare the
Kb with the Ka
3. When dissolved in water, will aluminum acetate produce an acidic, basic, or neutral solution? Explain. Ka for Al(H20)63+ = 1.4 x 10-5 Ka for HC2H302 = 1.8 x 10-5
QUESTION 3 Аркы B. Polyprotic C. Lewis Acid D. Proton E. Hydronium F. 7.00 Matching! The name for the polytomic ion H307 In a reaction, the compound that accepts the electron pair Acids and conjugate bases always differ by a ka If the pOH is high, the solution is (acidic / basic). Numerical value for Kw The higher the value of Kz, the stronger/weaker) the acid is. 4 Ba(CH3COO)2 is a[n) (acidic/basic/neutral) salt in water. NH4Br is ain) (acidic/basic/neutral) salt...
Writing polyprotic acid and base reactions: 1. Write all the dissociations for the three polyprotic acids: H_2CO_3, H_3AsO_4, H_3PO_4. Match the appropriate Ka1, Ka2, Ka3 values to the dissociation reaction. 2. Identify all the species in each of the reactions as either an acid, a base, or amphoteric. Imagine putting NaH_2AsO_4 in solution. This is a salt. Describe, using chemical equation, exactly what happens? First write the dissociation reaction of the salt. Then identify the pH active species, and then...
I need help!
68 14.7 Polyprotic Acids in acid (H,PO 14.7 CN- -.15 c. NaCN K for HCN is 6.2 X 10-10 d. (CH3)2NHCI Kb for (CH3)3N is 5.3 X 105 e. (CH3)2NHCN f. Cu(CIO4)2 10. In aqueous solution, ammonia reacts according to the following INT 9. Consider an aqueous solution of each o neutral, acidic, or basic. If the solutions are acidic or basi -HOL an aqueous solution of each of the following salts. For each salt, state whether...
Hey guys, I am having a lot of trouble with my homework. Could
you please help? I thumbs up anyone who gives a thorough
explanation and shows the work! I really need to understand these
concepts!
Thanks in advance!
1) At 25 °C, the pH of a 0.15 M aqueous solution of CsZ (the cesium salt of HZ) is 10.70. What is the Ka for HZ? 2) Calculate the pH of 0.586 M anilinium hydrochloride (C6H5NH3CI) solution in water at...
Hey guys, I am having a lot of trouble with my homework. Could
you please help? I thumbs up anyone who gives a thorough
explanation and shows the work! I really need to understand these
concepts!
Thanks in advance!
1) The Ka for HCN is 4.9 ~ 10-10. What is the value of Kb for CN-? 2) Using the data in the table for 0.10 M aqueous species at 25 °C, which conjugate base below is the weakest base? Explain...
please help ><
Polyprotic acids have more than one proton to donate to water, therefore have more than one equilibrium constant for proton donation. For phosphoric acid, there is a three-step equilibrium: H, PO +H,0 5 H2PO4 + H30* H,PO," +H,0 5 HPO - +H30* HPO 2- +,0 5 PO.- +,0* Kai = 7.11 x 10-3 Ka2 = 6.32 x 10-8 Ka; = 4.5 x 10-13 For all conjugate acid base pairs: K, XKK where K is for the reaction...
D. 5.0x106 1. If the Ka for HBrO is 2.0x10' what is the Kb of Bro A. 1.0x10-14 B. 2.0x109 C. 5.0x10-24 ture, puts the acids in the order of most acidic to 2. Choose the list which, based on structure, puts the acids in least acidic. A. HF > HCI > HBr > HI B. CC13-COOH > CCl2H-COOH > CCIH-COOH > CH3-COOH C. HCIO > HCIO > HCIO3 > HCIO4 D. B(OH)3 > NH3 > H2O > HF 3....
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