The pH of a 0.49 M week acid is found to be 6.5. What is the...
The pH of a 0.49 M week acid is found to be 6.5. What is the Ka of the acid? Enter your answer in scientific notation using "e" instead of "×10^" (1.23×10-7 = 1.23e-7) and round to three sig figs.
Homework Answers
![PH = 6.5 [H + 1 = lo by • lo 6.5 [A-1 = 1 3,16 x 107 HA - nt ta- Ka = [HATI A-] [НА 1 (3. 16x107 ) = 0.49 2.046 10-13 2.04 0-](http://img.homeworklib.com/questions/c0dcce40-d5d1-11eb-bd8d-ddcd463d76a3.png?x-oss-process=image/resize,w_560)
What is the Kw of pure water at 51.4ºC if the pH is 6.78? Enter your...
What is the Kw of pure water at 51.4ºC if the pH is 6.78? Enter your answer in scientific notation using "e" instead of "×10^" (1.23×10-7 = 1.23e-7) and round to three sig figs. please show work
A 0.495 M solution of a weak acid (HA) is made. The solution has a pH...
A 0.495 M solution of a weak acid (HA) is made. The solution has a pH of 4.53. Calculate the Ka of this acid. Report your answer in scientific notation with 3 sig figs.
1) A 8.65 ⋅ 10-3 M solution of HClO4 is made. -What is the pH of...
1) A 8.65 ⋅ 10-3 M solution of HClO4 is made. -What is the pH of this solution? -What is the pOH of this solution? -What is the [OH-] in the solution? Record this answer in scientific notation using 3 sig figs. 2)A 4.23⋅10-2 M solution of NaOH is made. -What is the pOH of this solution? -What is the pH of this solution? -What is the [H+] in the solution? Record this answer in scientific notation using 3 sig...
A weak monoprotic acid, HA dissociates by 1.300 % and has a pH of 2.15. Calculate...
A weak monoprotic acid, HA dissociates by 1.300 % and has a pH of 2.15. Calculate the Ka value for the acid HA. Record your answer in scientific notation to 3 sig figs. Preview
*Remember to submit each part separately to avoid losing your work* A 0.100 M solution of...
*Remember to submit each part separately to avoid losing your work* A 0.100 M solution of an unknown acid, HA, is 3.87% ionized. Complete the following table, but instead of using the variable x, calculate the number values of each quantity and report these values to the correct number of significant figures. Fill in all of the cells. Include signs in the Change column to indicate a gain or loss of concentration. Do not include any units in your answers,...
What is the percent ionization of a 0.213 M acetic acid solution with a Ka =...
What is the percent ionization of a 0.213 M acetic acid solution with a Ka = 1.75×10−5? Round answer to 3 sig figs and do not include the percent sign. please show work
A 0.013 M solution of a weak acid (HA) has a pH of 4.38. What is...
A 0.013 M solution of a weak acid (HA) has a pH of 4.38. What is the K, of the acid? Ka = 10 (Enter your answer in scientific notation.)
A 0.100 M solution of an unknown acid, HA, is 1.47% ionized. Complete the following table,...
A 0.100 M solution of an unknown acid, HA, is 1.47% ionized. Complete the following table, but instead of using the variable x, calculate the number values of each quantity and report these values to the correct number of significant figures. Fill in all of the cells. Include signs in the Change column to indicate a gain or loss of concentration. Do not include any units in your answers, M is assumed. To enter values in scientific notation follow the...
What is the [ H3O+] of a solution with pH = (8.50x10^0)? enter your answer in...
What is the [ H3O+] of a solution with pH = (8.50x10^0)? enter your answer in scientific notation and with three sig figs.
1. Enter your answer in the provided box. What is the pH of a 0.124 M...
1. Enter your answer in the provided box. What is the pH of a 0.124 M monoprotic acid whose Ka is 4.994 ×10−3? pH =___ 2. Be sure to answer all parts. The pH of a 0.054 M weak monoprotic acid is 3.75. Calculate the Ka of the acid. Ka = ___×10___Enter your answer in scientific notation. 3. Enter your answer in the provided box. Calculate the pH of a 0.030 M C5H5N (pyridine) solution. The Kb for pyridine is...
A weak monoprotic acid, HA dissociates by 1.300 % and has a pH of 2.15. Calculate the Ka value for the acid HA. Record your answer in scientific notation to 3 sig figs. Preview
A 0.013 M solution of a weak acid (HA) has a pH of 4.38. What is the K, of the acid? Ka = 10 (Enter your answer in scientific notation.)
A 0.100 M solution of an unknown acid, HA, is 1.47% ionized. Complete the following table, but instead of using the variable x, calculate the number values of each quantity and report these values to the correct number of significant figures. Fill in all of the cells. Include signs in the Change column to indicate a gain or loss of concentration. Do not include any units in your answers, M is assumed. To enter values in scientific notation follow the...
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