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WorksheetsOlympiad Molarity and Dilutions
Total questions: 8
Worksheet time: 4mins
100.0mL of 0.500M CaBr2 and 50.0mL of 1.00M NaBr are mixed. What is the concentration of bromide ion in the resulting solution?
0.500M
0.667M
0.750M
1.00M
What volume of 18.0M sulfuric acid must be diluted to 250.0mL to afford a 0.55M solution of sulfuric acid?
3.1mL
4.5mL
7.6mL
31mL
Which of the following combinations will produce a 0.4M NaCl solution?
Mixing 500mL of 0.5M NaOH with 500mL of 0.4M HCl
Mixing 300mL of 1.2M NaOH with 600mL of 0.6M HCl
Mixing 500mL of 0.4M NaCl solution with 500mL water
Diluting 400mL of 0.6M NaCl with water to a final volume of 1.0L
A 0.300M solution of HCl is prepared by adding some 1.50M HCl to a 500mL volumetric flask and diluting to the mark with deionized water. What volume of 1.50M HCl must be added?
100mL
150mL
225mL
250mL
What is the concentration of chloride ions in a solution formed by mixing 150mL of a 1.50M NaCl solution with 250mL of a 0.75M MgCl2 solution?
0.563M
1.03M
1.50M
2.25M
How much Sr(OH)2⋅8H2O (MM=265.76) is needed to prepare 250.0mL of solution in which the concentration of hydroxide is 0.100M?
3.32g
6.64g
9.97g
13.3g
What is the concentration of nitrate ion in a 425mL solution containing 32.0g of Mg(NO3)2 (MM=148.3) ?
0.216M
0.432M
0.508M
1.02M
Which of the following combinations will produce a 0.5M LiClO4 solution?
Mixing 200mL of 2.5M LiOH with 800mL of 0.625M HClO4
Mixing 100mL of 0.5M LiOH with 100mL of 0.5M HClO4
Diluting 400mL of 0.6M LiClO4 to 1000mL
Diluting 800mL of 0.625M LiClO4 with 400mL of water
