Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Question

1. If you have a 2.20 m solution of Na2SO4, what is the molarity of the solution?  The density of the solution is 1.06 g/mL.  Answer to 2 decimal places

2. An aqueous solution has a mole fraction of 0.10 NaNO3, what is the molality of this solution?  Answer to 2 decimal places.
 
3. An aqueous solution has a mole fraction of 0.10 Mg(C2H3O2)2, what is the mass percent of this solution?  Answer to 2 decimal places.
 
4. A solution of NaOH is 3.0 % (w/w).  What is this concentration in mole fraction?  Answer to 3 decimal place
 
5. A solution of NaOH is 7.0 % (w/w).  What is this concentration in molality?  Answer to 2 decimal place
 
6. An aqueous solution that is 3.62 m Na2CO3 has what mole fraction of Na2CO3?  Answer to 3 decimal places.
 
7. What is the mass percent of a 0.35 M solution of KF?  The density of the solution is 1.02 g/mL.  Answer to 1 decimal place.
 
8. If you have a 1.16 M solution of KCl, what is the molality of the solution?  The density of the solution is 1.00 g/mL.  Answer to 2 decimal places
 
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Step 2: Calculating the moles of Na2SO4
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Step 3: calculate the total mass of solution and volume
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Step 4: Calculate the molarity of solution
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