apch01_dimanal_ans

# apch01_dimanal_ans - South Pasadena AP Chemistry Name K E Y...

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Unformatted text preview: South Pasadena - AP Chemistry Name K E Y Period___ Date / / 1 . Matter & Measurements TIME PROBLEMS & DIMENSIONAL ANALYSIS As chemistry students, you have two goals with problems. First, get the correct answer. Second, be able to show others WHY your answer is correct. Dimensional analysis meets both of these goals. Dimensional analysis is always a Given value and one or more conversion factors that allow you to determine the Desired value. , , , 1 hour 60 min Any mathematical fact can serve as a conversron factor. 1 hour = 60 minutes z , or 60 mm 1 hour Ex. Convert 1.25 years lnto seconds. 4 2‘!» 60m \$12.. L252)“ %, WV WV %- 3q)q7,olooo\$¢g 1. Convert 2.83 days into seconds. 2.3 aim, '2;ng .EﬁSE—M =[2‘l‘1,5l1 5.3 2. Convert 7.72 years into days. 7.725“, MRS = .2 819.13 dew l g y 3. Convert 0.0035 weeks into seco’nits. L a, 36 0 0.0035 Louis '7 J v ‘1 y #‘ :‘ 2.110.823: c‘ to l mate 11“] ( I" 4. Convert 180 days into minutes. l (1441 l M.»- 5. Convert your age into seconds * lip 5r; v MVJLLV we , 501,911,000343L l 9k May 1 hr Xr Snafu ‘! y. _ D nsity IS often used as a conversron factor between the mass and volume 01a sample. For example, the density of liquid mercury is 13.6 g/mL. 6. What is the volume of a 175 gram sample of mercury? ”52% ”‘L =- l 3- (a 7. What is the mass of 1.00 ggllon of mercury? [1 cup = 236.588 mL] . L . l.wja9,is:1:v.ﬂ-4°" v———¥——"” 3“ v ——ﬁ-"" ° “J = 13¢ [3+ lap ML 8. When I carry in a 5-gallon container of water from my car, I always wonder its weight. I looked up on the web and found that 1 lb = 0.453542 kg and 1 qt = .946353 Liter. Calculate its weight in pounds. SOOJJY I'l ‘I’ ymLVﬂywolm—V—I—L—3m 1J4 lb} ll— luu— Iowa 0.4535142le ...
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