Directions: Classify the following substances as either acidic or basic, and say whether they have a pH greater than 7 of a pH less than 7. SUBSTANCE ACIDIC OR BASIC pH Fanta Orange Lux Soap Тар Water Colgate Toothpaste Handy Andy Dishwashing Liquid Blood Tartar Sauce Baking Powder Vitamin C

Enter the formula for the conjugate base of HNO2HNO2. Express your answer as a chemical formula.

Calculate the pH of  a 0.53 M HONH2 solution. Give your answer to two decimal places  Kb(HONH2) = 1.0 x 10‒5

What are the concentrations of hydrogen ion and hydroxide ion in household ammonia, an aqueous solution of NH3 that has a pH of 11.50?  What is the concentration of hydroxide ion in household ammonia, an aqueous solution of NH3 that has a pH of 11.50?     M  OH-      What is the concentration of hydrogen ion in household ammonia, an aqueous solution of NH3 that has a pH of 11.50?     M  H+

Consider the following data on some weak acids and weak bases: base acid K₁ name formula name formula nitrous acid HNO₂ 4.5 × 10 4 hypochlorous acid HC1O 3.0 × 108 ammonia aniline C6H5NH24.3 × 10-10 NH, 1.8 × 10-5 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 KCIO choose one 0.1 M NH4Cl choose one 0.1 M KBr choose one 0.1 M C6H5NH3Br choose one G

Complete the table below. Round each of your entries to 2 significant digits. You may assume the temperature is 25 °C. conjugate acid conjugate base Ox10 formula K. formula K, HCo, 2.2 x 10 HCH,CO, 1.8 x 10 -4 HNO, 4.5 x 10

chemist dissolves 312. mg of pure sodium hydroxide in enough water to make up 170. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C. Round your answer to 3 significant decimal places.

Consider the following data on some weak acids and weak bases: acid base Ka K₁₂ name formula name formula hydrofluoric acid HF 8 × 10 4 ethylamine C2H5NH2 6.4 × 101 hypochlorous acid HClO 3.0 × 10 ammonia NH3 1.8 × 10-5 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 0.1 M NaCIO PH choose onev 0.1 M NH4Cl choose onev 0.1 M C2H5NH3Br choose one 0.1 M KF choose one Х

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Complete the table below. Round each of your entries to 2 significant digits. You may assume the temperature is 25 °C. conjugate acid conjugate base formula K a -5 HCH3CO₂ 1.8 × 10 HF 6.8 × 10 4 formula K₁₁ ☐ -7 CIO 3.3 x 10 x10