Concentration of a Saturated Solution1. Mass of weigh boat (g)3.1g2. Mass of weigh boat and KCI solution (g)9.6g3. Mass of KCI solution (g) = Row 2 – Row 16.5gAFTER EVAPORATION4. Mass of weigh boat and solid KCI (g)3.3g5. Mass of solid KCI (g) = Row 4 – Row 10.2g6. Mass of evaporated water (g) = Row 3 – Row 56.3gMass percent of KCl (SHOW CALCULATION)Molality of KCl (SHOW CALCULATION)

Answered: Concentration of a Saturated Solution…

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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From the diagram below, at 10° C, roughly how many grams of NH3 can be dissolved in 100 grams of H2O? a. 70 b. 45 c. 90 d. 100
46.29 g of KOH is dissolved in 250. mL of water. (Please pay attention to sig figs!) What is the mass percent of KOH in this solution? (use the density of water 1.00g/mL) a. b. What is the concentration, expressed in molal (m = moles solute/kg solvent), of this initial solution? What is the concentration, expressed in molar (M = moles solute/liters solvent), of this initial solution? (assume that the addition of the KOH to the water did not change the C. volume, which is still 250.mL) d. If I add 500.mL of pure water to this 250.mL solution, what is the new concentration expressed in molar (M)? (Careful, what is the new volume after mixing?) e. If, instead, I took the 250. mL solution and evaporated the water until the solution had a volume of 150.mL, what would be the concentration of this this new solution expressed in molar (M)?
Table 4. Concentration calculations Mass of empty evaporating dish (g) 29.258 Volume of NaCl solution (mL) 10.0 Mass of dish and NaCl solution (g) Mass of dish and dry NaCl (g) Mass of NaCl solution (g) Mass of dry NaCl (g) Mass/mass percent (%) Mass/volume percent (%) Moles of NaCl (mol) Volume of NaCl solution in liters (L) Molarity of NaCl solution (mol/L) 40.498 31.164
A solution is prepared by dissolving 23.4 g of CaCl2 (MW = 110.98 g/mol) in 355 mL of water. The density of the resulting solution is 1.05 g/mL. The concentration of CaCl2 in this solution is ________ molar.
Describe how to prepare each solution from the dry solute and the solvent.a. 125 mL of 0.100 M NaNO3b. 125 g of 0.100 m NaNO3c. 125 g of 1.0% NaNO3 solution by mass
If 53.0 g of KClO3 was transferred into 125.0 g of water at 30.0 celcius. how many grams of KClO3 will percipitate? g solute at 30.0 celcius is 10 grams
Calculate the molarity of the solute in the following solutions containing a. 7.70 g MgNH PO4 in 250. mL solution Molarity = mol/L b. 14.3 g NaCH3COO in 300. mL solution Molarity = mol/L c. 2.04 g CaC204 in 600. mL solution Molarity = mol/L d. 1.44 g (NH4)2SO4 in 600. mL solution Molarity = mol/L %3D
4. From the information below, determine the mass of NH3 in 500. grams of concentrated ammonia? DATA FROM BOTTLE % Solute by Mass Density Ammonia, concentrated 28 0.90 g/mL Mass nerc
What is a colligative property? O A property that depends on the number of particles in solution, but not on the nature of the particles. O A property that relates the temperature of a gas to the pressure of the gas. O A property that depends on the specific chemical behavior of the constituent elements and not on the amount in solution. O A property that can only be measured when the moles of gas are constant. O A property that enhances the solubility of a molecule in water.
Principal ingredient of an antacid is Al(OH)3 (76.98). The concentration of 0.00400 M Al(OH)3 solution in terms of normality is a. 4.0 x 10-3 N b. 1.3 x 10-3 N c. 1.2 x 10-2 N d. 8.0 x 10-3 N
11. If 56.1 grams of NaCl are dissolved in 44.0 mL of Sulfuric acid, H2SO4 Sulfuric acid has a density of 1.84 grams per mL. Calculate the following concentration measures. a. Weight/volume percent b. Weight/weight percent c. Molarity
‘’Concentrated’’ sulfuric acid solution is 95% sulfuric acid by mass (and the remainder water) and has a density of 1.64 gr/mL. ( Molar mass of H2SO4= 98 gr/mol ) What is the molarity of concentrated sulfuric acid solution? a. 18 M b. 12 M c. 16M d. 9M

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