Question 6 (2 points) Chloroacetic acid, HC2H2CIO2, has a greater acid strength than acetic acid, because...
S> Question 7 (2 points) What is the pH of a 0.174 M aqueous solution of hydroxylamine, HONH2? The Ky for methylamine is 1.1x10-8. You do not need to solve the quadric equation for this problem. Express your answer to two decimal places. Your Answer: Answer
Question 3 (2 points) Barbituric acid, HC4H3N203, is used ito prepare various barbiturate drigs (used as sedaives). Without solving the quadratic equation, calculate the concentration of hydrogen ion in a (2.50x10^-1) M solution of the acid. The value of K, is 9.8x10-5 Express your answer to three significant figures. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer 54 Question 4 (2 points) What is the concentration of hydroxide ion in a...
Consider two aqueous solutions of nitrous acid (HNO2). Solution A has a concentration of (HNO2] = 0.25 M and solution B has a concentration of (HNO2] = 1.55 M. You may want to reference (Page 743) Section 16.6 while completing this problem. Part A Which statement about the two solutions is true? O Solution B has the higher percent ionization and the higher pH. O Solution A has the higher percent ionization and the higher pH. O Solution B has...
QUESTION 1 6 points Save Answer The purpose of an indicator in an acid-base titration is to indicate the of the titration. Use Table 10.2 for the following question. If an acidic solution is titrated with a basic solution and methyl violet is used as an indicator, the solution color will change from to QUESTION 2 3 points Save Answer The molarity of a solution prepared by dissolving 17.0 g of hydrochloric acid (HCI (aq) in 133 mL of water...
Question 6 (2 points) Calculate the pH of 0.0080 M butanoic acid, which is a monoprotic acid; Ka=1.52 x 10-5. Assume that the 5% approximation rule applies. Provide your answer to two places after the decimal. Your Answer: Answer
L. Explain why a solution of 0.10 M HNO(ag) conducts more electrical current than does a solution of 0.10 M formic acid, HCOOH. 2. Explain the observed trend in melting points in the hydrogen halides. HI HBr 88.5 °C HF 83.1 "C 14.8° Ethanol has a heat of vaporization of 38.56 kJ/msol and a normal boiling point of 78.4°C. what is the vapor 3. pressure ofethanol at 15 ℃ ? 4. One type of household bleach contains 455% sodium hypochlorite(NaOCl)...