Multiple Choice
Which statement best describes the pH scale?
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Calculate [OH−] of a lemon juice solution at 25°C with a [H+] = 5.7 × 10−4 M.
Which of the following solutions will have the lowest concentration of hydronium ions?
Which of the following statements about aqueous solutions is/are true?
What is the Kw of pure water at 20.0°C, if the pH is 7.083?
Calculate the pH of 50.00 mL of 4.3 x 10-7 M H2SO4.
Determine the pH of a solution made by dissolving 6.1 g of sodium cyanide, NaCN, in enough water to make a 500.0 mL of solution. (MW of NaCN = 49.01 g/mol). The Ka value of HCN is 4.9 x 10-10.
OI− OCl− OBr−
A solution of NaOH was prepared in a chemistry lab and the pOH was determined to be 9.3. What is the concentration of OH− ions of this basic solution?