ELABORATE & EVALUATEActivity 2: SolutionsSelf-Assessment No. 21. Compute the weight (g) of solute needed to make the solutions listed below:a. 1250 mL of 0.85 M AICI3b. 0.500 L of 9.25 N K2SO4c. 350 g of 13.2 %w/w of Ca(OH)22. Calculate the %w/v of a solution made by dissolving 22.0 g CH3OH (methanol) inC2H5OH (ethanol) to make 100 mL solution.3. What is the %v/v of 10.0 mL of CH3OH (methanol) dissolved in water to a volume of40.0 mL?4. A solution is prepared at 25°C by mixing 20 g of K2SO4 with 150 cc of water. The densityof water at this temperature is 1 g/cc. What is the m of K2SO4?5. Express the formality (F) the concentration of each of the following solutions:a. 28.4% NH3 by weight, having a density of 0.808 g/mLb. 69.5% HNO3 by weigt, aving a density of 1.42 g/mL6. An aqueous solution of hydrofluoric acid is 12.5 molal with respect to HF and has adensity of 1.070 g/mL at 250C. Calculatea. mole fraction of HFb. %w/w of HFC. molarityd. molality7. Calculate the volume of concentrated reagent required to prepare the dilutedsolutions indicated:a. 15 M NH3 to prepare 50 mL of 6.0 M NH3b. 18 M H2SO4 to prepare 250 mL of 10.0 M H2SO48. Calculate the molarity of the solutions by mixing 250 mL of 0.75 M H2SO4 witha. 150 mL of H20b. 250 mL of 0.70 M H2SO4To be submitted in Google classroom on:Prepared by: Engr. N. L. Escalante

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Self-Assessment No. 2 Compute the weight (g) of solute needed to make the solutions listed below: a. 1250 mL of 0.85 M AICI3 b. 0.500 L of 9.25 N K2SO4 c. 350 g of 13.2%w/w of Ca(OH)2 OH (meth

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

ELABORATE & EVALUATE
Activity 2: Solutions
Self-Assessment No. 2
1. Compute the weight (g) of solute needed to make the solutions listed below:
a. 1250 mL of 0.85 M AICI3
b. 0.500 L of 9.25 N K2SO4
c. 350 g of 13.2 %w/w of Ca(OH)2
2. Calculate the %w/v of a solution made by dissolving 22.0 g CH3OH (methanol) in
C2H5OH (ethanol) to make 100 mL solution.
3. What is the %v/v of 10.0 mL of CH3OH (methanol) dissolved in water to a volume of
40.0 mL?
4. A solution is prepared at 25°C by mixing 20 g of K2SO4 with 150 cc of water. The density
of water at this temperature is 1 g/cc. What is the m of K2SO4?
5. Express the formality (F) the concentration of each of the following solutions:
a. 28.4% NH3 by weight, having a density of 0.808 g/mL
b. 69.5% HNO3 by weigt, aving a density of 1.42 g/mL
6. An aqueous solution of hydrofluoric acid is 12.5 molal with respect to HF and has a
density of 1.070 g/mL at 250C. Calculate
a. mole fraction of HF
b. %w/w of HF
C. molarity
d. molality
7. Calculate the volume of concentrated reagent required to prepare the diluted
solutions indicated:
a. 15 M NH3 to prepare 50 mL of 6.0 M NH3
b. 18 M H2SO4 to prepare 250 mL of 10.0 M H2SO4
8. Calculate the molarity of the solutions by mixing 250 mL of 0.75 M H2SO4 with
a. 150 mL of H20
b. 250 mL of 0.70 M H2SO4
To be submitted in Google classroom on:
Prepared by: Engr. N. L. Escalante

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