Part 5 X Your answer is incorrect. Try again. Using the answers from the previous parts, solve for the molality of the solution. 351 Use correct number of significant digits;
Part 5 X Your answer is incorrect. Try again. Using the answers from the previous parts, solve for the molality of the solution. 351 Use correct number of significant digits;
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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I only need part 5, I have everything else.
Transcribed Image Text:The first step in solving a problem of this type is to determine what variables are needed. Since the problem asks for molality, identify the equation for molality.
kg solvent
mol solution
mol solute
kgsolvent
O molsolute
Lsolution
O mololute x kgsolvent
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INK ΤOΤΕXT
v Part 2
V Your answer is correct.
Based on the equation for molality, it is known that the moles of the solute (NaCl) and kilograms of the solvent (H20) are needed. Use the density of the solution (1.070 g mL) to determine the mass of one liter of the solution.
1070
Use correct number of significant digits;
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Transcribed Image Text:v Part 3
V Your answer is correct.
The molality equation also requires the moles of solute. The molarity describes 3.000 moles of Nacl per 1 L of solution. Use the moles of Nacl to solve for the mass of Nacl.
Note: use the molar mass of Nacl rounded to 4 significant figures.
175.3
Use correct number of significant digits;
SHOW HINT
SHOW SOLUTION
v Part 4
Your answer is correct.
Use the mass of the solution and the mass of Nacl to determine the mass of the water in the solution.
894
g water
Use correct number of significant digits;
SHOW SOLUTION
- Part 5
x Your answer is incorrect. Try again.
Using the answers from the previous parts, solve for the molality of the solution.
351
Use correct number of significant digits;
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