Chemistry 1127Q Lecture Notes 9/8/16
Chemistry 1127Q Lecture Notes 9/8/16 Chem 1127Q
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This 1 page Class Notes was uploaded by Aidan on Thursday September 8, 2016. The Class Notes belongs to Chem 1127Q at University of Connecticut taught by Dr. Fatma Selampinar in Summer 2015. Since its upload, it has received 9 views. For similar materials see General Chemistry in Chemistry at University of Connecticut.
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Date Created: 09/08/16
SI Unit of volume is m^3 = (m x m x m) dm^3 = L cm^3 = mL A dime is 1 mm thick A quarter is 2.5 cm in diameter A nickel has a mass of about 5 g 1 lb = 454 g 1 in = 2.54 cm 1 L =1.06 qt Ave velocity of hydrogen molecules at 0ºC is 1.69 x 10^5 cm/s. Find the value in mi/hr. 1.69x10^5 cm/1 s x 3600 s/1 h x 1 inch/2.54 cm x 1 ft/12 in x 1 mi/5280 ft = 3780.42233357 mi/h Density is an intensive property of matter defined as the mass per unit volume = mass/volume When two objects of density are together the denser object will be below the less dense object What is the mass of 25 mL of mercury? 25 mL x g/mL = ? g 25 mL x 13.5g/1 mL = 338 g An experiment requires 28.7 g of isopropyl alcohol. What volume of isopropyl alcohol is required? 28.7 g = ? mL 28.7 g x mL/g = ? mL 28.7 g x 1 mL/.785 g = 36.6 mL Percent is parts per hundred parts aa% = aa parts something/100 parts of the whole aa% = xx parts something/yy parts something x 100%