A 0.25 M solution of a salt NaA has pH=8.93. What is the value of Ka for the parent acid HA?
1. A 0.30 M solution of a salt NaA has pH=8.87. What is the value of Ka for the parent acid HA? Please show work
A 0.190 M solution of a weak acid (HA) has a pH of 2.91 Part A Calculate the acid ionization constant (K) for the acid, Express your answer using two significant figures. 10 Ad O ? K.- Submit Request Answer Provide Feedback
A 0.240 M solution of the salt NaA has pH = 8.40. Calculate Ka for the acid HA.
A 20.0 mL of 0.36 M solution of the salt NaA has a pH of 8.40. a) Calculate the pKa value of the acid HA. (Correct to 3 sig. fig) b) Calculate the pH of a solution containing 0.4 M HA and 0.6 M NaA. (Correct to 3 sig. fig)
Consider two aqueous solutions of nitrous acid (HNO2). Solution A has a concentration of (HNO2] = 0.25 M and solution B has a concentration of (HNO2] = 1.55 M. You may want to reference (Page 743) Section 16.6 while completing this problem. Part A Which statement about the two solutions is true? O Solution B has the higher percent ionization and the higher pH. O Solution A has the higher percent ionization and the higher pH. O Solution B has...
Part A A 0.172 M weak acid solution has a pH of 3.51. Find K, for the acid. Express your answer using two significant figures. O A¢ o oa ? K = | Submit Previous Answers Request Answer Find the percent ionization of a 0.250 M HC,H,O, solution at 25°C Express your answer to two significant figures. O ALOR O ? percent ionization = Submit Request Answer
A 0.340M solution of the salt NaA has ph of 8.40 calculate the ka value of the acid Ha.show all equation involved your calculations
Ka is not given in the question Part C Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.330 M H,C204. Express your answer using two significant figures. IVO ACO * * O O ? [H3O+]= Submit Request Answer Part D Calculate the pH of this solution. Express your answer using two decimal places. O AEON 2 ? pH = Submit Request Answer
help! will rate! A 0.25 M NaA solution has a pH of 9.25 at 25°C. Calculate the pK value of HA.