| 1. |
In a chromatography column (basically a long thin tube) there is carbon dioxide flowing at a rate of 10 ml/min. If the maximum flow rate for the column is 158 ml/min, at what fraction of the maximum is the column currently operating? Express your answer as a fraction.
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| 2. |
* This is a pre-made sheet.
Use the link at the top of the page for a printable page. |
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| 3. |
If a solution of MgCl is 2/9 M, what will its concentration be if it is diluted by 13%? Express your answer as a fraction.
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| 4. |
One-fourth of a kilogram of experimental glue was made by Superchem, Inc. The glue was one-tenth acrylate X101, three-tenths wood glue, and the rest was made up of their regular type-A paper glue. How many kilograms of type-A paper glue were used in this mixture?
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| 5. |
Six moles of silver nitrate followed by three moles of silver chloride are added to a vat containing 50 L of water. Of the silver that was added, what fraction came from the silver nitrate?
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| 6. |
A 500-gram package of growth powder made by Z-Globe contains 0.09% yeast extract by mass. What fraction of the powder is not yeast extract?
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