1. Solutions of known % (v/v) is prepared by the use of ... a. balance b. volumetric flask c. graduated cylinder d. both b and c 2. A brine solution is 13.0 % (w/w). How much salt is there in a sample which weighs 150 grams? а. 1.2 g b. 19.5 g с. 30.0 g d. 7.5 g 3. What is the molarity of KI in a solution that is 5.00% KI by mass and has a density of 1.038 g-cm3? a. 0.0301 M b. 0.313 M c. 0.500 M d. 0.625 M 4. In a heating or cooling curve, what does it mean when the line stays flat for a while before going up or down? 5. Consider a solution composed of toluene (C7H8) and benzene (C6H6) with volumes 50 mL and 125 mL, respectively. The densities of the compositions are 0.867 g/cm³ and 0.874 g/cm3, respectively. Find the molarity with respect to toluene.
1. Solutions of known % (v/v) is prepared by the use of ... a. balance b. volumetric flask c. graduated cylinder d. both b and c 2. A brine solution is 13.0 % (w/w). How much salt is there in a sample which weighs 150 grams? а. 1.2 g b. 19.5 g с. 30.0 g d. 7.5 g 3. What is the molarity of KI in a solution that is 5.00% KI by mass and has a density of 1.038 g-cm3? a. 0.0301 M b. 0.313 M c. 0.500 M d. 0.625 M 4. In a heating or cooling curve, what does it mean when the line stays flat for a while before going up or down? 5. Consider a solution composed of toluene (C7H8) and benzene (C6H6) with volumes 50 mL and 125 mL, respectively. The densities of the compositions are 0.867 g/cm³ and 0.874 g/cm3, respectively. Find the molarity with respect to toluene.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:1. Solutions of known % (v/v) is prepared by the use of ...
a. balance
b. volumetric flask
c. graduated cylinder
d. both b and c
2. A brine solution is 13.0 % (w/w). How much salt is there in a sample which weighs
150 grams?
а. 1.2 g
b. 19.5 g
с. 30.0 g
d. 7.5 g
3. What is the molarity of KI in a solution that is 5.00% KI by mass and has a density
of 1.038 g.cm3?
a. 0.0301 M
b. 0.313 M
c. 0.500 M
d. 0.625 M
4. In a heating or cooling curve, what does it mean when the line stays flat for a while
before going up or down?
5. Consider a solution composed of toluene (C7H8) and benzene (C6H6) with volumes
50 mL and 125 mL, respectively. The densities of the compositions are 0.867 g/cm3
and 0.874 g/cm³, respectively. Find the molarity with respect to toluene.
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