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post different questions separately. please rate
can you please show steps for the first question and explain the answers for the other...
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13. Which of the following is a Lewis acid-base reaction? a. CH3Br + CH3Cl → CH3Cl + HBr b. •CH3 + HCl →CH3CI C. NaCl + AgNO3 → AgCl + NaNO3 d. Cl2 + PCl3 → PCOS e. None of them are Lewis acid-base reaction 12. Given the following information for the acids, HF (K = 6.76 x 10“), HNO, (K =4.6 x 10), and HCN (K = 4.79 x 10-19), arrange in the order of...
can someone please explain the answers by showing steps
please? i have an exam tommorow
18. Novocaine, used as a local anesthetic in dentistry, is a weak base (at 25 °C.K. = 8.91 x 10“). What is the ratio of the concentration of the base to that of the acid in the blood plasma (pH = 7.40) of the patient? (Base): (acid) = ? (Note: For example, if (Base)/(acid) -0.25 then it's a 1:4 ratio but (Base)/(acid) = 4 then...
please explain the steps please
5. Determine the Ky for CN at 25°C. The K, for HCN is 4.9 x 10-10. 6. Determine the Ka of an acid whose 0.294 M solution has a pH of 2.80. 7. Determine the acid dissociation constant for a 0.020 M formic acid solution that has a pH of 2.74. Formic acid is a weak monoprotic acid and the equilibrium equation of interest is HCOOH(aq) + H20(1) =H30+(aq) + HCO2-(aq).
please explain how you got all your answers
10. Calculate the pH of a 0.30 M formic acid solution. (K-1.8 x 10") Weak monoprotic acid. 11. Calculate the K, for a 0.050 M solution of HA (weak acid) if the pH = 4.65. 12. What is the pH of the solution which results from mixing 50.0 mL of 0.30 M HF(aq) and 50.0 mL of 0.30 M NaOH(aq) at 25C? (K. of F = 1.4 x 10) 13. Which of...
9. What is the pH for 0.20 M HCIO solution? K = 2.5 x 10-7 a) 4.05 b) 3.70 c) 4.80 d) 7.00 e) 7.40 10. What is the pH of a mixture containing 0.30 M HNO, and 0.15 M NaNO, (K, for HNO2 is 4.5 x 104) a) 4.35 b) 3.05 c) 4.65 d) 5.01 e) 4.05 11. Acid strength increases in the series: HCN <HF <HSO.. Which of these species is the strongest base? a) SO42- b) F-...
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!
Thank you guys!
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...
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...
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!
Thank you!
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 your...
estion 10 of 65 > Consider the reaction. HF(aq) + KOH(aq) — KF(aq) + H20(1) What is the net ionic equation for the chemical reaction? HF(aq) + K+(aq) + OH(aq) — K+(aq) + F (aq) + H2O(1) O HF(aq) + K+(aq) + OH-(aq) — K+(aq) + F (aq) + H+(1) + OH-(1) O HF(aq) + OH-(aq) —> F-(aq) + H2O(1) HF(aq) + K+(aq) F (aq) + H+(1) HF(aq) + K+(aq) K+(aq) + H2O(1) - 11 of 65 > Calculate either...
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...