1. Solutions of known % (v/v) is prepared by the use of ...a. balance b. volumetric flask c. graduated cylinderd. both b and c2. A brine solution is 13.0 % (w/w). How much salt is there in a sample which weighs150 grams?а. 1.2 gb. 19.5 gc. 30.0 gd. 7.5 g3. What is the molarity of Kl in a solution that is 5.00% KI by mass and has a densityof 1.038 g-cm3?a. 0.0301 Mb. 0.313 Mc. 0.500 Md. 0.625 M4. In a heating or cooling curve, what does it mean when the line stays flat for a whilebefore going up or down?5. Consider a solution composed of toluene (C7H8) and benzene (CeHs) with volumes50 mL and 125 mL, respectively. The densities of the compositions are 0.867 g/cm3and 0.874 g/cm3, respectively. Find the molarity with respect to toluene.

(1) The %(v/v) can be defined as the solute in litres is present in liquid solvent. The %(v/v)…

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

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

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

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
c. 30.0 g
d. 7.5 g
3. What is the molarity of Kl 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 (CeHs) 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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