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Posted: **Fri Jul 15, 2022 4:41 pm**

: Volume Calculations Recall That The Volume Of A Cube Length X Width X Height Example A Cube Of Metal Is 1 00 Inch On 1 (58.34 KiB) Viewed 40 times

: Volume Calculations Recall That The Volume Of A Cube Length X Width X Height Example A Cube Of Metal Is 1 00 Inch On 2 (42.91 KiB) Viewed 40 times

: Volume Calculations Recall That The Volume Of A Cube Length X Width X Height Example A Cube Of Metal Is 1 00 Inch On 3 (56.75 KiB) Viewed 40 times

: Volume Calculations Recall That The Volume Of A Cube Length X Width X Height Example A Cube Of Metal Is 1 00 Inch On 4 (55.96 KiB) Viewed 40 times

: Volume Calculations Recall That The Volume Of A Cube Length X Width X Height Example A Cube Of Metal Is 1 00 Inch On 5 (30.84 KiB) Viewed 40 times

Volume Calculations| Recall that the volume of a cube = length x width x height Example: A cube of metal is 1.00 inch on each side. Calculate the volume in3 cm3. Know: 1 in =2.54 cm Volume in inches =1.00 in ×1.00 in ×1.00 in =1.00in3 See that the number and the unit must be cubed. (Cube everything in the parentheses) The answer is rounded correctly to 3 significant figures. Problems: For the following problems, remember to include units in every step. Show your work and be sure to cube (or square, etc) the unit and the number. The sig figs must be correct for any credit. Each problem is worth 1 point. 10. A cube of metal is 2.23 cm along one edge. Calculate the volume of this cube. 11. Convert 11.1 cm3 to units of m3. Be careful here to cube your unit factor (as in the example above). Use a table or use the unit factor method clearly for credit. Express your answer with the correct number of significant figures in scientific notation.
12. The diameter of an atom is 0.246 nm. Calculate the volume in nm3 show all your work, including units in each step. V=(4/3)πr3 Convert the volume obtained above to mm3 using the table below. Remember to go through the basic unit: nm3→m3→mm3 Remember to cube both the number and the unit for each factor.
Density Problems: Density is a physical property that is unique for a pure substance. The formal definition of density is mass per unit volume. Density = volume mass Recall that mass is usually in grams, and the volume may be in mL for liquids or cm3 for solid samples. Example: A sample of zinc weighs 253.9 g has a volume 35.60 cm3. What is the density of zinc? Note card moment here: mL=1cc=1 cm3 35.60 cm3253.9 g=7.132 g/cm3 Example: Calculate the mass of a cube of zinc with a volume of 44.65 cm3. Using the unit factor method with density as the factor: Note: 7.132 g/cm3 means: 1 cm37.132 g The inverse is also true: 71271 cm3
Set up a unit factor table to use density as the factor. Notice how the units of cm3 cancel out, leaving the desired unit of g in the answer. Problems: For the following problems, use density as a factor when determining the mass or volume. Each problem is worth 1 point. 13. A cube of metal is 1.32 cm on an edge. It has a mass of 21.3 g. Calculate the density of this metal cube. Show work for each step including the units in each step. (A table is not necessary for this problem) 14. The density of ethanol is 0.791 g/mL. Calculate the mass of 35.0 mL of ethanol. Use the unit factor method described above for credit.
15. During a glucose tolerance test, the serum glucose concentration of a patient was found to be 1.31mg/dL. Convert the concentration to grams per liter. the scientific notation are correct before submitting. and that your units cancel out, and all of the sigs and the scientific notation are correct before submitting.