Principles of Modern Chemistry

8th Edition

ISBN: 9781305079113

Author: David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher: Cengage Learning

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I want to know if there is a chart to go by to know how to convert metric systems and SI units for multistep conversion factors. I'm having trouble determining how to change them to a different one. For example kg/L into mL.

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Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 47 to calculate the following. a. 1 ha = __________ km2 b. The area of a 5.5-acre plot of land in hectares, square meters, and square kilometers c. A lot with dimensions 120 ft by 75 ft is to be sold for 6500. What is the price per acre? What is the price per hectare?

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The density of a solution of sulfuric acid is 1.285 g/cm3, and it is 38.08% acid by mass. Calculate the volume of the acid solution (in mL) you need to supply 125 g of sulfuric acid.

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What is the difference between reporting the quantity nine inches as 9 inches and 9.00 inches?

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Vanadium metal is added to steel to impart strength. The density of vanadium is 5.96 g/cm3. Express this in SI units (kg/m3).

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Fill in the first missing part of this equation using a UNIT RATIO.
* For example, converting m to cm would require multiplying by the unit ratio:
(1cm)/(10-2 m)

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What conversion factors are needed to convert:a. nanometers to meters?b. density given in g/c m 3 to a value in kg/ m 3?

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A student sets up the following equation to convert a measurement.
(The ?stands for a number the student is going to calculate- you don't need to solve for ?.)
Fill in first the missing part of this equation using a UNIT RATIO.
* For example, converting m to cm would require multiplying by the unit ratio:
(1cm)/(10-2 m)

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The density of Solid A is 2.70 g/cm3 and that of Solid B is 3.87 g/cm3 . If 1.00 g of each solid is transferred to a graduated cylinder containing 5.00 mL of water. Which solid displaces the larger volume of water? By how many milliliters?

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The SI units of density are kg/m³ but g/cm³ is more commonly used. How many g/cm³ are in 1 kg/m³?

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Employ the method of dimensional analysis to convert 1 cubic yard to tonnes of water. Assume a density of water of 0.998 g/mL. To ensure that the question is marked as correct, arrange the units so that the top unit cancels with the bottom unit in the next step. Note that some of the quantities have been filled in for you.

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You plot A vs Conc (mg/mL) for a set of 5 standards in mg/mL and get the equation for the line as 0.962=0.310x+0.315. Solve for x and report the results with correct units and sig-figs.
Is this question really just as simple as solving for x? I feel like I'm missing something here...

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Why is it important to know how to convert from one unit to another? Provide an example in which you would use conversions.

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