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Chapter 12 Solutions
EBK BASIC CHEMISTRY
- 5.14 What is the molar concentration of chloride ion in a solution prepared by dissolving 22.0 g of calcium chloride (FW= 111.1 g/mol) to 4.0L with water?arrow_forwardA) Potassium chloride is soluble in water. Calculate the molality (m) of a solution made by adding 10.00 g of potassium chloride to 200. g of water. (6 pts.) B) Calculate the freezing point of this solution.ΔTF = i x m x KFKF (water) = 1.86 °C/mFreezing point of water is 0.00 °Carrow_forward3- A sample of a solution weighing 850.0 g is knowno con potassium chlorice, What is the weight percent of potaSINm chloa in the solution? Ans. 1.96% n0203 moles of 4- Conc. HCl has a density of 1.19 g mL and is about weight HCI. The Molarity and norraality of the solution is: (a) 11.9 and 11.9 (c) 12.07 and 12.07 (d) 5.95 and 11.90 (b) 11.9 and 23.8 Show your calculations Ans (a)arrow_forward
- 4. (5 pts) When 0.258 g of a molecular compound, benzoic acid, was dissolved in 40.0 g of benzene, the freezing point of the solution was lowered to 5.23 °C. What is the molecular weight of the benzoic acid? Freezing point of pure benzene = 5.46 °Celsius Kf of benzene = 5.12 °C/molalarrow_forward(7.50ml) Charles' Law 1. Several balloons are inflated with helium to a volume of 0.75 L at 27°C. One of the balloons was found several hours later, the temperature had dropped to 22°C. What would be the volume of the balloon when found, if no helium has escaped? (0.74L) Sign out V 8 12 DELL %23 %24 & 4 6 [O e r t y u d. f m alt ctri ofarrow_forwardBarium Hydroxide has a solubility of 4.68 g Ba(OH)2 in 100. g H2O at 25°C. Determine if each of the following solutions will be saturated or unsaturated at 25°C: (9.3) a) adding 32 g of Ba(OH)2 to 990 g of H2O b) adding 7.0 g of Ba(OH)2 to 125 g of H2O c) adding 22 g of Ba(OH)2 to 350. g of H2Oarrow_forward
- For the following reaction: 2 HCI + Ca(OH)2 → CaCl₂ + 2 H₂O (1) What is the equivalent mass of Ca(OH)2? (2) Calculate the number of equivalents in 26.2 grams of Ca(OH)2. g/equiv equivarrow_forwardFor the following reaction: 2 HBr + Ca(OH)2 → CaBr₂ + 2 H₂O (1) What is the equivalent mass of Ca(OH)2? (2) Calculate the number of equivalents in 24.3 grams of Ca(OH)2. g/equiv equivarrow_forward10.109 A 0.204 M NaOH solution is used to titrate 50.0 mL of an H,PO, solution. (10.7) a. Write the balanced chemical equation. b. What is the molarity of the H;PO4 solution if 16.4 mL of the NaOH solution is required?arrow_forward
- 100.0 mL of HCI required 5.831 g Mg(OH)2 to titrate. The molar mass of Mg(OH)2 is 58.31 g. What is the concentration of the HCI ? The neutralization equation is 2 HCI + Mg(OH)2 MgCl₂ + 2 H₂O There is enough information to calculate the moles of Mg(OH)2 mol Mg(OH)2 -): (5.831 g Mg(OH)₂ (- g Mg(OH)₂ Then use stoichiometry to convert moles of Mg(OH)2 into moles of HCI mol HCI concentration a. acid i. 0.2000 mol Mg(OH)2 (-- mol Mg(OH)2 We now can calculate the concentration of HCI since we have both the moles of HCI and the volume of HCI mol HCI p. 0.01000 b. base c. HCI NaOH j. 1.000 k. 0.005000 q. 0.001000 L HCI r. 58.31 e. NaCl I. 100.0 f. H₂O m. 0.1000 s. 5.831 g. 25.00 mol Mg(OH)2 mol/L n. 0.05000 h. 0.02500 mol HCI o. 2.000arrow_forwardHow many grams of solid of LiCl (MW 42.471 g/mol) would be left behind if 28.807 mL of 0.550 M KCl solution was evaporated to dryness? (2 SF)arrow_forward9.116 Lithium chloride has a solubility of 55 g of LiCl in 100. g of H,O at 25 °C. Determine if each of the following mixtures forms an unsaturated or saturated solution at 25 °C: (9.3) a. adding 10 g of LiCl to 15 g of H;O b. adding 25 g of LİCI to 50. g of H,0 c. adding 75 g of LiCl to 150. g of H,O ne on nearrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
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