CHM083 TOPIC 4
Quiz
•
Chemistry
•
University
•
Medium
Firus Musfirah
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Select the correct definition for solution.
Substance dissolved in solvent
A homogeneous mixture of two or more substances
A mixture contains two or more substances that are not chemically combined
Substance in which solute dissolves
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What is the molarity of 5.30 g of Na2CO3 dissolved in 400.0 mL solution?
0.105 M
0.125 M
0.25 M
0.225 M
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
How much NaOH (in grams) is needed to prepare 546 mL of solution with a concentration of 0.347 M?
0.189 g
7.578 g
134.862 g
239.141 g
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
How many moles of Ca(NO3)2 are there in 75 mL of 0.25 M solution?
0.0188 mol
0.02 mol
0.0321 mol
0.044mol
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
You have a 0.5 M MgSO4 stock solution available. Calculate the volume of the stock solution needed to make 2.0 L of 0.20 M MgSO4.
0.8 L
0.1 L
5.0 L
0.5 L
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
You have 505 mL of a 0.125 M HCl solution and you want to dilute it to exactly 0.100 M. How much distilled water should you add?
631.25 mL
404.00 mL
126.25 mL
101.00 mL
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Calculate the molarity of solution prepared when 100 ml of a 6.0 M KCl solution is diluted to a volume of 5.0 L
0.3 M
3.0 M
1.2 M
0.12 M
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