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4.33 Muriatic acid, an industrial grade of concentrated HCI, is used to clean masonry and cement. Its concentration is 11.7 M. (a) Write instructions for diluting the concentrated acid to make 3.0 gallons of 3.5 M acid for routine use (1 gal many milliliters of the muriatic acid solution contain 9.66 g of HCI? = 4 qt; 1 qt = 0.946 L). (b) How %3D A 24 T e atud. niat

4.33 Muriatic acid, an industrial grade of concentrated HCI, is used to clean masonry and cement. Its concentration is 11.7 M. (a) Write instructions for diluting the concentrated acid to make 3.0 gallons of 3.5 M acid for routine use (1 gal many milliliters of the muriatic acid solution contain 9.66 g of HCI? = 4 qt; 1 qt = 0.946 L). (b) How %3D A 24 T e atud. niat

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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4.31 Concentrated sulfuric acid (18.3 M) has a density of 1.84 g/mL. (a) How many moles of H2S04 are in each milliliter of solution? (b) What is the mass % of H2SO4 in the solution? Problems in Context 4.32 Ordinary household bleach is an aqueous solution of sodium hypochlorite. What is the molarity of a bleach solution that con- tains 20.5 g of sodium hypochlorite in 375 mL? 20.5 g of sodium hypochlorite in 375 mL? 4.33 Muriatic acid, an industrial grade of concentrated HCI, is used to clean masonry and cement. Its concentration is 11.7 M. (a) Write instructions for diluting the concentrated acid to make 3.0 gallons of 3.5 M acid for routine use (1 gal many milliliters of the muriatic acid solution contain 9.66 g of HCI? 4.34 To study a marine organism, a biologist prepares a 1.00-kg sample to simulate the ion concentrations in seawater. She mixes 26.5 g of NaCI, 2.40 g of MgCl2, 3.35 g of MgSO4, 1.20 g of CaCl2, 1.05 g of KCI, 0.315 g of NaHCO3, and 0.098 g of NaBr in distilled water. (a) If the density of the solution is 1.025 g/cm, what is the molarity of each ion? (b) What is the total molarity of alkali metal ions? (c) What is the total molarity of alkaline earth metal ions? (d) What is the total molarity of anions? 4 qt; 1 qt = 0.946 L). (b) How 4.35 Water "softeners" remove metal ions such as Ca2+ and Fe+ by replacing them with enough Na ions to maintain the same f number of positive charges in the solution. If 1.0x10° L of "hard" water is 0.015 M Ca2+ and 0.0010 M Fet, how many moles of Nat are needed to replace these ions? 3+ Writing Equations for Aqueous lonic Reactions Concept Review Questions 4.36 Which ions do not appear in a net ionic equation? Why? 4.37 Write two sets of equations (both molecular and total ionic) with different reactants that have the same net ionic equation as the following equation: 2NONO. (aa)
Transcribed Image Text:4.31 Concentrated sulfuric acid (18.3 M) has a density of 1.84 g/mL. (a) How many moles of H2S04 are in each milliliter of solution? (b) What is the mass % of H2SO4 in the solution? Problems in Context 4.32 Ordinary household bleach is an aqueous solution of sodium hypochlorite. What is the molarity of a bleach solution that con- tains 20.5 g of sodium hypochlorite in 375 mL? 20.5 g of sodium hypochlorite in 375 mL? 4.33 Muriatic acid, an industrial grade of concentrated HCI, is used to clean masonry and cement. Its concentration is 11.7 M. (a) Write instructions for diluting the concentrated acid to make 3.0 gallons of 3.5 M acid for routine use (1 gal many milliliters of the muriatic acid solution contain 9.66 g of HCI? 4.34 To study a marine organism, a biologist prepares a 1.00-kg sample to simulate the ion concentrations in seawater. She mixes 26.5 g of NaCI, 2.40 g of MgCl2, 3.35 g of MgSO4, 1.20 g of CaCl2, 1.05 g of KCI, 0.315 g of NaHCO3, and 0.098 g of NaBr in distilled water. (a) If the density of the solution is 1.025 g/cm, what is the molarity of each ion? (b) What is the total molarity of alkali metal ions? (c) What is the total molarity of alkaline earth metal ions? (d) What is the total molarity of anions? 4 qt; 1 qt = 0.946 L). (b) How 4.35 Water "softeners" remove metal ions such as Ca2+ and Fe+ by replacing them with enough Na ions to maintain the same f number of positive charges in the solution. If 1.0x10° L of "hard" water is 0.015 M Ca2+ and 0.0010 M Fet, how many moles of Nat are needed to replace these ions? 3+ Writing Equations for Aqueous lonic Reactions Concept Review Questions 4.36 Which ions do not appear in a net ionic equation? Why? 4.37 Write two sets of equations (both molecular and total ionic) with different reactants that have the same net ionic equation as the following equation: 2NONO. (aa)
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