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A solution consists of 60.3 g of potassium bromide, KBr, and 120.7 g water. (a) Calculate the weight percent, the molality, and the mole fraction of KBr in the solution. weight percent= molality= mole fraction= molarity = % (b) The solution volume is 140 mL. Calculate the molarity of KBr in the solution. M E

A solution consists of 60.3 g of potassium bromide, KBr, and 120.7 g water. (a) Calculate the weight percent, the molality, and the mole fraction of KBr in the solution. weight percent= molality= mole fraction= molarity = % (b) The solution volume is 140 mL. Calculate the molarity of KBr in the solution. M E

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter1: Basic Concepts Of Chemistry
Section: Chapter Questions
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Use ppm and ppb concentration units The EPA's secondary standards for contaminants that may cause cosmetic or aesthetic effects in drinking watelsuggest an upper limit of 0.200 mg/L for aluminum. If 1.51x10 liters of water in a storage tank contains 1.77 grams of Al, what is the contaminant level in ppm? in ppb? Is this level acceptable based on EPA guidelines? ppm ppb
Transcribed Image Text:Use ppm and ppb concentration units The EPA's secondary standards for contaminants that may cause cosmetic or aesthetic effects in drinking watelsuggest an upper limit of 0.200 mg/L for aluminum. If 1.51x10 liters of water in a storage tank contains 1.77 grams of Al, what is the contaminant level in ppm? in ppb? Is this level acceptable based on EPA guidelines? ppm ppb
Calculate solution concentration. A solution consists of 60.3 g of potassium bromide, KBr, and 120.7 g water. (a) Calculate the weight percent, the molality, and the mole fraction of KBr in the solution. weight percent molality= mole fraction = molarity = % (b) The solution volume is 140 mL. Calculate the molarity of KBr in the solution. M m
Transcribed Image Text:Calculate solution concentration. A solution consists of 60.3 g of potassium bromide, KBr, and 120.7 g water. (a) Calculate the weight percent, the molality, and the mole fraction of KBr in the solution. weight percent molality= mole fraction = molarity = % (b) The solution volume is 140 mL. Calculate the molarity of KBr in the solution. M m
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