What is the pH of a solution that is prepared by dissolving 2.49 g of pyridine (79.10 g/mol) in 100 mL of 0.0550 M HCl and diluting to 900.0 mL?
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What is the pH of a solution that is prepared by dissolving 2.49 g of pyridine...
What is the pH of a solution that is prepared by dissolving 7.20 grams of salicylic acid (formula weight = 138.12 grams/mol) and 7.12 grams of sodium salicylate (formula weight = 160.10 grams/mole) in water and diluting to 700.00 mL? The Ka for salicylic acid is 0.00105.
What is the pH of a solution that is prepared by dissolving 9.90 grams of pyruvic acid (formula weight = 88.06 grams/mol) and 9.25 grams of sodium pyruvate (formula weight = 90.04 grams/mole) in water and diluting to 800.00 mL? The Ka for pyruvic acid is 0.00324.
The Ka in my textbook for HSCN is .13. Calculate the pH of a solution prepared by (This problem requires values in your textbook's specific appendices, which you can access through the OWLv2 MindTap Reader. You should not use the OWLv2 References' Tables to answer this question as the values will not match.) a. dissolving 0.534 g of thiocyanic acid, HSCN (59.09 g/mol), in 100 mL of water. pH = b. diluting 10.0 mL of the solution in (a) to...
What is the pH of this solution prepared by dissolving 0.28 grams of KOH in 250 mL of solution? (molar mass KOH = 56.11 g/mol)
A standard stock solution of Cr6+ was prepared by dissolving 0.507 g dried K2CrO4 (formular mass=194.1896 g/mol) in deionized water and diluting to 100 mL in a volumetric flask. What is the concentration of the standard solution in units of g Cr/L? The molar mass of chromium is 51.9961 g/mol.
What is the Molarity (M) of a solution prepared by dissolving 27 g of CaCl2 in 2.0 L se (Molar mass of CaCl2 d) 3.3 M a) 0.3 M b) 0.6 M c) 0.15 M What is the concentration of a solution formed by diluting 10 mL of 6.4 M glucose s mL? a) 0.6 M b) 0.16 M c) 16 M d) 1.6 M The conjugate base of HSO4? a) SO2 b) HSO3 c) H2SO4 d) H.С Calculate the...
6. What is the pH of a solution prepared by dissolving 1.00 g of (CH3)2NH in enough water to form 500. mL of solution? What is the pH of this solution? 7. What is the molarity of hydronium ion and pH of 0.035 M ammonia solution? 8. Arrange following equimolar solutions in the order of increasing pH: NaCl, HF, NH3, and KOH. Explain your reasoning.
What is the pH of a solution prepared by dissolving 0.553 g of potassium acetate, KCH3CO2, in 500.0 mL of water?
4) A buffer solution is prepared by dissolving 5.40 g of ammonium chloride in 20.0 mL of water a mixing it with 35.0 mL of 10.0 Mammonia. Ky for ammonia is 1.8x10° a) What is the pH of this buffer solution b) This buffer solution is diluted with water to volume of 100.0 mL and 5.00 mL of 0.500 M HCl are added to the 100.0 mL of buffer. What is the expected pH of the buffer solution after the...
A buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH3COONa) into 100.00 mL of a 0.100 M solution of acetic acid. Then 2.00 mL of a 1.00 M solution of hydrochloric acid is added to the acetic acid/sodium acetate buffer solution. The Ka of acetic acid is 1.8 × 10−5. What is the pH of HCl?