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Converting ounces to pounds 0001
Convert 7 678 ounces to pounds.
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True or false questions 0001
Decide if these sentences are true or false and rewrite the false sentences correctly. Be careful because each mistake discounts a right answer:
a) Density of a solution is equal to the mass of the solute divided by the volume of the solvent.
b) The interaction between unlike charges is a repulsion force.
c) Distillation is the method to separate miscible liquids.
d) Decantation is the correct method to separate a mix of alcohol and water.
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Magnitudes and units 0001
The structure of a chemical compound is a cube. If the length of the edge of the cube is 500 pm, what will be the volume of the cube expressed in mL?
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Solutions: Percentage by mass 0001
Make a solution by mixing 22 g of sugar and 240 mL of milk. Determine the percentage by mass of this solution. How much sugar is needed to prepare 500 g of solution with the same concentration?
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General gas law: final volume of a gas (1927)
Calculate the final volume of a gas at and 1.1 atm, when its volume is 3 L and temperature and pressure are increased to and 1.3 atm.