Calculate the pH at 25 °C of a 0.25M solution of anilinium chloride (C6H5NH2Cl). Note that aniline (C6H5NH2) is a weak base with a pK of 4.87. Round your answer to 1 decimal place. pH ☑

The pKa of NaH2PO4 is 6.86. Its conjugate base is Na2HPO4.  One dissolves 5.0 grams each of NaH2PO4 and Na2HPO4 in 500.0 mL of water, how many grams each of NaH2PO4 and Na2HPO4 must be dissolved in enough water to make 1.0 L of solution whose pH = 7.2? If the final concentration of NaH2PO4 is 0.1 M.

Calculate the pH of a 0.094 M solution of formic acid, H2CO2. The K, of formic acid 4 x 10 4 Submit your answer with 3 significant digits. Answer:

The pH of a 0.49M solution of acrylic acid (HC₂H₂CO₂) is measured to be 2.28. Calculate the acid dissociation constant K of acrylic acid. Round your answer to 2 significant digits. a K₁ = 0 x10 X Ś

Consider the following data on some weak acids and weak bases: acid Ka formula name name 8 hypochlorous acid HCIO 3.0 × 10 hydrofluoric acid HF 6.8 x 10 base Kb formula -10 aniline C&H NH 4.3x 107 methylamine CH3NH2 4.4 × 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution PH 0.1 M C6H5NH3Br choose one ✓ choose one 0.1 M KCI choose one ◇ 1 (lowest) 0.1 M KCIO choose one 2 0.1 M NaF choose one 3 × 4 (highest)

Pyridine and methanol can act as weak bases. Their ?b values are given. Consider the compounds water, ethylamine, acetone, and aniline, whose ?b values can be found in the table. Classify them by whether they can be appreciably (?eq>1) protonated by pyridinium, CH3OH+2, both, or neither.

Consider the following data on some weak acids and weak bases: acid base 9. name formula name formula HCH,CO2 1.8 × 10¯ CH;NH, 4.3 x 10 - 10 аcetic acid aniline hydrofluoric acid HF -4 6.8 × 10 methylamine CH,NH, 44 x 10-4 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 M KF choose one 0.1 M NaCl choose one 0.1 M C6H5NH3Br choose one 0.1 M CH3NH3CI choose one

Calculate the pH at 25 °C of a 0.62 M solution of lidocaine HCI (C₁4H₂NONH₂CI). Note that lidocaine (C₁4H₂NONH) is a weak base with a pk of 7.94. Round your answer to 1 decimal place.

Calculate the pH at 25 °C of a 0.26M solution of potassium acetate (KCH₂CO₂). Note that acetic acid (HCH3CO₂) is a weak acid with a pK of 4.76. Round your answer to 1 decimal place. pH = X Ś ?

The acid dissociation constant K, of trimethylacetic acid (HC (CH3) CO2 is 9.33 × 10 *. Calculate the pH of a 6.1M solution of trimethylacetic acid. Round your answer to 1 decimal place. PH