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by BlastRoom
Practice calculating density and judging measurement quality from lab data.
#chemistry
24 questions
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A metal cube has a mass of 54.0 g and a volume of 20.0 cm3. What is its density?
A liquid sample has a mass of 16.2 g and a volume of 18.0 mL. Which density should be reported?
A mineral fragment has a mass of 35.5 g and a volume of 5.00 cm3. What is the fragment's density?
A plastic block has a mass of 8.40 g and takes up 12.0 cm3 of space. What is its density?
A brass rod has a mass of 67.2 g and a volume of 8.00 mL. What is the rod's density?
A solution sample has a mass of 125 g and fills a 100.0 mL flask. What is the density of the solution?
Use the cylinder figure. The solid's mass is 21.6 g. What is its density from water displacement?
Read the two cylinders and use the object's mass of 36.8 g. What density do the measurements give?
A small object is placed in the cylinder, and its mass is 11.0 g. What density is shown by the displacement?
Use the before-and-after cylinder readings. If the object has a mass of 19.8 g, what is its density?
Use the table of three trials. What is the best average density for the sample?
Use the table. What is the density of Trial B?
Use the table. If each row is one density trial, what average density should the student report?
Use the table of samples. What is Sample C's density?
Use the table. Which density comes from Trial 2?
Use the table for Liquid X. What density is calculated from Sample 2?
Use the table. What is Object Q's density?
Use the proportional mass and volume data. What density do the rows support for the liquid?
A student measures copper's density as 8.70 g/cm3. The accepted value is 8.96 g/cm3. What is the percent error?
A lab result for aluminum density is 2.50 g/cm3, while the accepted value is 2.70 g/cm3. What is the percent error?
A student finds ethanol's density to be 0.810 g/mL. The accepted density is 0.789 g/mL. What is the percent error?
A metal's measured density is 10.90 g/cm3; its accepted density is 11.34 g/cm3. What is the percent error?
A lab group reports density trials of 2.70, 3.00, and 3.30 g/mL for a standard known to be 3.00 g/mL. Which description fits the set?
A balance gives masses of 10.1 g, 10.0 g, and 10.2 g for a standard known to be 8.0 g. How should the results be described?
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Homogeneous and Heterogeneous Mixtures
24 questions
