In Class Problems 1

# In Class Problems 1 - If 17.98 g of ethanol is needed for a...

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CHEMISTRY 1414 Spring 2011 In-Class Problems Set #1 NOTE: You are responsible for ALL metric prefixes given in Table 1.2 on page 10 of Zumdal’s Chemistry . CONVERSIONS: 1 kg = 2.205 lbs T(°C) = (5 °C/9 °F)*(T(°F) – 32 °F) 1 in = 2.54 cm EXACTLY T(°F) = (9 °F/5 °C)*T(°C) + 32°F 1 fluid oz = 29.574 ml 0 K = - 273.15 °C 1 mol = 6.0221 x 10 23 _____ 1 J = 1 kg m 2 s -2 1 J = 0.2390 cal 1) . Mass You buy 32.5 oz of lunchmeat at the deli counter. How many kilograms is this? 2) . Length A person is 5 ft 7 in tall. How many meters is this? 3) . Volume A car’s gas tank holds 14.5 gallons. How many liters is this? 4) . Density a) . The density of ethanol is 0.789 g/mL.

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Unformatted text preview: If 17.98 g of ethanol is needed for a solution, what volume in centiliters is needed? b) . The density of mercury at 25.0 °C is 846.0 lb/ft 3 . What is the density of mercury in g/mL? 5) . Amount of Substance The population of Oklahoma according to the 2010 Census is 3,687,050 people. How many moles is this? 6) . Temperature The low temperature tonight is forecast to be 11.5 °F. What is this in °C? What is it in K? 7) . Energy You are driving your Volkswagen Jetta on the Austrian Autobahn at a speed of 105 mi/h. If the mass of the car is 2804 lbs, what is the energy in Joules exerted by the car, given that E = ½ mv 2 ?...
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## This note was uploaded on 11/28/2011 for the course CHEM 1414 taught by Professor Slaughter during the Spring '07 term at Oklahoma State.

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In Class Problems 1 - If 17.98 g of ethanol is needed for a...

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