2. A0.2001g sample of Na2CO3 required 25.10ml of x's HCl to reach endpoint. The x's HCl was titrated and required 3.20ml of 0.02M NAOH soln. Calculate the molar concentration of HCl. Na2CO3 + 2HCI --> 2NaCl + H2O + Co2 HCI + NAOH --> Nacl + H20

Be sure to answer all parts.What is the [H3O+] and the pH of a benzoic acid-benzoate buffer that consists of 0.16 M C6H5COOH and 0.46 M C6H5COONa? (Ka of benzoic acid = 6.3 × 10−5) Be sure to report your answer to the correct number of significant figures.[H3O+] = _____pH = ______

Give good solution Asap Buffer A: CH3COOH 40.0 mL; NaOH 20.0 mL; H2O 20 mL Buffer B: CH3COOH 40.0 mL; NaOH 30.0 mL; H2O 10 mL Please identify how the buffer capacity of Buffer A and Buffer B change if the volume of water added was doubled. And does the the buffer capacity increase, decrease, or remain the same. Pleas explain why in detail?

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Give quirkily answer

For a saturated solution of an unknown metal hydroxide (M(OH)₂), 13.75 mL of this solution were required o neutralize 25.00 mL of 0.02 M HCl. Calculate the Ksp of the metal hydroxide. 1.

A 25.00 mL solution of 0.100 M HCl and 25.00 mL 0.100 M CH3COOH were analyzed by direct potentiometry and potentiometric titration. Which of the following statements is true? Direct potentiometry will give equal concentrations of [H+] in the HCl and in the CH3COOH. Direct potentiometry will give different concentrations of [H+] in the HCl and in the CH3COOH. Potentiometric titration will give equal volumes of 0.100 M NaOH to reach the EP for the separate titration of the HCl and CH3COOH solutions. Potentiometric titration will give different volumes of 0.100 M NaOH to reach the EP for the separate titration of the HCl and CH3COOH solutions. a.I and III b. III only c. II and III d. I and IV

75.0 mL of a saturated M(OH)4 solution is titrated with 0.0050 M HCl, requiring 5.00 mL to reach the endpoint. Calculate the pKsp of M(OH)4. Express the answer with 2 places past the decimal point.

Determine the mass of solid NaCH,COO that must be dissolved in an existing 500.0 mL solution of 0.200 M CH;COOH to form a buffer with a pH equal to 5.00. The value of Ka for CH,COOH is 1.8 x 10. NEXT > Let x represent the original concentration of CH;COO in the water. Based on the given values, set up the ICE table in order to determine the unknown. CH;COOH(aq) + H2O(1) H,O (aq) CH;COO (aq) Initial (M) Change (M) Equilibrium (M)

Caitlin titrated 25.00 mL of 0.40 M formic acid with 0.25 M LIOH. What volume of lithium hydroxide is needed to reach the equivalence point? Volume LiOH = [?] mL Volume LIOH (mL) Enter