Summer Assignment Honors Chemistry - Ridge PTO

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Algebra Review a. It is important to be able to simplify algebraic terms when fractions are involved. b. Whenever there is a fraction in the denominator, it can be simplified by inverting it. c. Often terms may be simplified by canceling the numerator and denominator by a common factor. Units can be manipulated just like algebraic terms. d. When it is necessary to solve for “x” you need to rearrange a given equation so that you end up with “x” on one side of the equation. If “x” is in the denominator, you must first cross multiply in order to move “x” to the numerator. Answer the following questions showing all work. 1. Convert the following into Standard Scientific Notation: a. 348 ______________________ b. 96386 ____________________ c. 0.00053 ___________________ d. 0.54 ______________________ e. 1.00007 ___________________ 2. Expand the following numbers. a. 3.22 X 10 5 _________________ b. 5.12 X 10 -3 _________________ c. 0.21 X 10 4 __________________ d. 3.11 X 10 -2 __________________ e. 6.22 X 10 1 __________________ 3. Perform the following manipulations. a. (4.6 X 10 5 ) divided by (4.1 X 10 7 ) b. (3.5 X 10 -3 ) multiplied by (7.3 X 10 7 ) c. (9.1 X 10 2 ) + (4.2 X 10 3 ) d. (5.2 X 10 -2 ) + (2.4 X 10 2 ) e. (4.2 X 10 3 ) - (3.6 X 10 2 ) 4. Solve for x in the following problems. a. (x – 10)/ 75 = 8 b. (9 – a)/x = 81 c. (4 - a)/x 2 = 62 d. (x – 10) = 2/ x 2 e. a + 52 = 72 – x 2
Conversion Problems and Dimensional Analysis We will be using dimensional analysis (also called factor label and unit conversions) to solve chemistry problems. This method makes use of ratios called conversion factors. Conversion factors are ratios of two quantities that are equal to one another. To solve a problem using dimensional analysis, the given measurement must be multiplied by a conversion factor that allows the units given to cancel so that the desired unit remains. Let us convert 72 inches to feet. 72 inches X 1 foot/12 inches = (72/12) feet = 6 feet Perform the following conversions using dimensional analysis. You may have to look up the conversion factors. Show your work. 1. 7 yards to feet 2. 5.3 centimeters to meters 3. 87 m 3 to cm 3 4. 743 feet to miles 5. How many gallons of gasoline can be purchased for $18.00 if the cost of gasoline is $3.53 per gallon? 6. A student experiences a growth spurt and measures 5 feet and 10 inches. Express his height in meters. Become familiar with the metric units of Kilo, Hecto, Deka, Deci, Centi, and Milli and how they can be converted from one to another. Dimensional analysis can be used for these conversions. The following problems will enable you to fine tune your math skills and experience the level of difficulty that you will encounter during the school year in <strong>Honors</strong> <strong>Chemistry</strong>. Please show all work and circle your answer. 1. If speed is equal to distance divided by time, and time is equal to distance divided by speed, what is distance equivalent to?
Page 1: Honors Chemistry Summer Assignment
Page 5: 10. Assume that there are 28 studen

Summer Assignment Honors Chemistry - Ridge PTO

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