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Topic 2 – Measurements Final Test Review

Topic 2 – Measurements Final Test Review. Practice making these temperature conversions:. 25 C = ? F 310 C = ? K -17.3 F = ? C 85 K = ? C. Solve the following problems involving density:. The density of aluminum is 2.73 g/ mL. What would be the volume will 12.44 g of Aluminum?.

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Topic 2 – Measurements Final Test Review

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  1. Topic 2 – Measurements Final Test Review

  2. Practice making these temperature conversions: 25 C = ? F 310 C = ? K -17.3 F = ? C 85 K = ? C

  3. Solve the following problems involving density: The density of aluminum is 2.73 g/mL. What would be the volume will 12.44 g of Aluminum? Determine the density of a 20.5 mL solution placed in an empty graduated cylinder weighing 51.87 g. The new mass of the solution and graduated cylinder is 64.09 g. The density of iron is 7.87 g/cm3. What is the mass of a block of iron 4.2 cm x 2.1 cm x 0.6 cm? A chunk of solid is placed in 14.0 mL of water. The new level in the graduated cylinder is 22.5 mL. What is the density of the solid?

  4. Determine the scale and then read the volume in each graduated cylinder

  5. Match the quantitative property with the correct basic unit and the equipment used to measure that property. Property Unit Equipment Volume J/cal barometer Mass m calorimeter Length mmHg/psi/atm graduated cylinder Temperature L ruler Pressure C/K balance Heat g thermometer

  6. Make the following conversions using unit analysis 3.19 m = ? mm 0.884 atm = ? mmHg If the molar mass of water is 18.02 g, calculate: 0.0527 moles = ? g 1607 cal = ? kJ 44.6 cg = ? kg

  7. Look up the densities of each substance in your book and then create a picture that shows how the densities would relate to each other in the graduated cylinder. For those substances not in your book or in your notes, the densities have been provided. Justify your picture by providing the densities for each element listed Bromine Glycerin 1.26 g/mL Silicon Alcohol 0.792 g/mL Mercury Water Potassium Titanium Corn syrup 1.49 g/mL

  8. More Unit Analysis problems. PRACTICE MAKES PERFECT! Make the following conversions. Show all work and units. Round answers off to the correct significant digits. 8.09 mm = ? km 541.08 J = ? Kcal 11.7 psi = ? mmHg

  9. On this unit analysis problem, identify what the student did incorrectly. Check all parts, including the calculation of the final answer. The conversions not found on the calculation resource sheet are: 1 kg = 2.2 lbs, 16 oz. = 1 lb

  10. Study the description of and calculations foradensity experiment using the lab equipment in room 202. Then identify what the student did incorrectly. A student determined the density of a piece of bismuth using a balance and a 25 mL graduated cylinder. First he weighed the bismuth and recorded the mass as 26.7 g. He then put 11 mL of water in a graduated cylinder and dropped in the bismuth. Only a couple of drops of water splashed out but the water level read 14. The student then calculated density and percent error, since Bismuth’s correct density is 9.89 g/mL.

  11. Evaluate this student prepared Best Fit Line Point Graph for errors. Which best fit line is the better “fit?” Calculate and correctly label the slope of your choice based on correction you make on the graph. 80 Y versus X 70 65 Mass in grams 60 50 40 32 16 0 5 10 15 20 25 30 35 40 Volume

  12. Density Lab questions: Design a lab procedure that would allow you to determine the density of a gas. What data would have to be recorded during the process of performing the lab? Design a lab procedure that would allow you to determine the density of a liquid. What data would have to be recorded during the process of performing the lab?

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