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Chapter 16 Solutions
EBK INTRODUCTORY CHEMISTRY: AN ACTIVE L
- Acrylic acid is used in the polymer industry in the production of acrylates. Its K, is 5.6 X 10“’. What is the pH of a 0.11 M solution of acrylic acid, CH2CHCOOH?arrow_forwardCalcium phosphate is a supplement used to treat calcium deficiencies that may be associatedwith low blood calcium, a parathyroid disorder, or osteoporosis and other bone conditions. Ifthe supplement has dissolved 3.5 x 10 -7 M of phosphate ions, what is the concentration of thedissolved calcium ions? Ksp = 2.07 × 10 −33 at 25 degrees Carrow_forwardIbuprofen (also known as Brufen) is an analgesic (pain killer) and anti-inflammatory drug. It is a weak carboxylic acid (Chemical Formula: C12H17C00H; K = 1.2 x 10-5). A Medical student from Lusaka Apex Medical University (LAMU) prepared a 0.4 M solution of Brufen to give to an accident victim with minor injuries but in a lot of pain. on i. Write a reaction equation showing how Brufen ionizes in water. ii. Write the acid ionization constant expression for Brufen iii. Calculate the percent ionization of Brufen in water Select one: O A C12H17COOH(ag) + H2OM → C12H17CO0'(aq) + H3O*(aq)} K = [C;;H1¬CO0"][H30*]. [C1,H17COOH][H=0] 0.55% %3D OB. + C12COO(ag) + H3O*(aq); K= [C1;;H17C00"][H,o*j. [C2H17COOH] C12COOH(a) + H2O¶ 0.55% C12COOH(ag) + H2O) → C12COO (aq) + H30*(aq), K = [C1;H3;C00"][H30*]. [C,2H17COOH][H=0] 0.0022 %3D [CH1,CO0"][H30*]. [C1H17COOH] Go O D. C12H17COOH + H2O C12H17CO0* + H3O*|K = 0.55% %3Darrow_forward
- An aqueous solution of calcium chloride is labeled 0.010 M CaCl2. What is the molar concentration of CaCl2, Ca+, and Cl- in the aqueous solution? Explain.arrow_forwardItem 18 18 of 20 Part A Pure acetic acid (HC,H,0,) is a liquid and is known as glacial acetic acid. Calculate the molarity of a solution prepared by dissolving 25.00 mL of glacial acetic acid at 25 °C in sufficient water to give 500.0 mL of solution. The density of glacial acetic acid at 25 °C is 1.05 g/mL. 3. 15 x 103arrow_forwardEach row of the table below describes an aqueous solution at 25 °C. The second column of the table shows the initial components of the solution. • Use the checkboxes in the third column to explain the type of the initial solution. The fourth column describes a change in the solution. • Use the fifth column to predict how the change in the solution will change its pH. solution initial components A B с H₂O H₂O, NaOH H₂O, NaOH H₂O initial type (check all that apply) acidic basic neutral acidic basic neutral acidic basic neutral acidic basic neutral change add KI add NaBr add H Br add HI effect of change on pH (check one) pH higher pH lower pH the same pH higher pH lower pH the same pH higher pH lower pH the same pH higher pH lower pH the samearrow_forward
- 7) An aqueous solution containing 25.0 mg of a hormone in 150.0 mL of solution with an osmotic pressure at 25 °C of 9.00 mmHg. What is the molecular weight of the hormone? 8) (a) What is the pH of a solution in which 45 mL of 0.10 M sodium hydroxide is added to 25mL of 0.15M hydrochloric acid? (b) A brand of carbonated beverage has a pH of 3.50. Calculate [H*]=?arrow_forwardA sodium hydroxide solution is standardized by titrating 0.8592 g of ordinary standard potassium hydrogen phthalate (204.22 g/mol) to a phenolphthalein end point, requiring 32.67 ml. What is the molarity of the NaOH solution? cO,K cO;K + NaOH + H,0 COH Pim yg plaarrow_forwardAmmonium chloride (NH4CI) is very soluble in water, 383 g/L at room temperature, and has a standard enthalpy of solution (dissolving) = +14.7 kJ/mol. If you had a saturated aqueous solution of NH4CI, which of the following acts would increase the NH4CI solubility? adding KOH(aq) to the solution adding HBr(aq) to the solution adding NaCl(aq) to the solution cooling the solutionarrow_forward
- Solution 0.549*10^-82 is wrong, 0.1098x10^-80 is also wrong. This question is not graded.arrow_forwardAt 25 °C, only 0.0500 mol of the generic salt AB is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C? AB(s) A+ (aq) + B¯(aq) Ksp = = TOOLS y x10arrow_forward1) Describe how you would prepare a 500.00 mL portion of 0.25M calcium hydroxide solution starting with solid calcium hydroxide. (b) What is the pH of the solution? 2) Acetone has a vapor pressure of 183.0 mm Hg at 40 °C and a heat of vaporization of 30.8 kJ/mol. What is the vapor pressure of acetone at 25 °C? 3) (a) Calculate the molality (m) of a solution containing 75.0 gm of glycol (C2H&O2) in 250.0 gm of water. (b) What is the mass percent of glycol in this solution?arrow_forward
- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning