UDC CHEM 111 Fall 2017 Homework #2 Due September 6, 20017 Dr. John Sczepanski Na
ID: 696813 • Letter: U
Question
UDC CHEM 111 Fall 2017 Homework #2 Due September 6, 20017 Dr. John Sczepanski Name: Date Turn in your answers on this page, write your answer on not on the line will be marked wrong. You may use the back of this sheet and/or staple additional pages ou the line provided. DON'T FORGET UNITS. Answers work for possible partial credit. Some useful conversion data are given in Homework #1 Problems #9-15 are worth 3 points. #9 A horse race is 5.25 furlongs. How long is the race in miles? aspirin are sold as 81 mg tablets. How many grams of aspirin are there in a bottle of 50 heart healthy tablets? #1 1 A solid block has dimensions of 1.4 by 3.4 cm by 1.1 cn. What is the volume of the block? #12 How many teaspoons are in 1385 cups of water? #13 In crazytown gasoline is sold for SO 61 per quart. You purchased 3,2 gal of gasoline. How much did it cost? #14 A factory produces one widget every 20 minutes. How many widgets would the factory produce in 36 hours. #15 A dee see submersible descended 975 fathoms. How many miles below the surface is the submersible? Problems #16 to #19 are worth 5 points. #16 A block of uranium has dimensions of 1.5 cm by 21 cm by 3.4 cm. The density ofuranium is 19.1 gcm. What is the mass of the uranium sample? #17 How many seconds are there in 3 days? #18 A medieval wedding lasted three days. There were 37 guestsat the wedding, and 6 barrels of mead were consumed. How many pints of mead did the average guest drink? #19 Gasoline in squirelville costs $1.03 per liter. Your drive 152 kilometers to Grandpa's house. 8.3 kilometers per liter. How much did your trip cost? Your car getsExplanation / Answer
9. One furlong = 0.125 miles. So 5.25 furlongs = 5.25*0.125 = 0.65625 miles.
10. One heart healthy tablet = 81mg. 50 heart healthy tablets = 50*81 = 4050 mg = 4.050 grams
11. Dimensions of the block = 1.4cm*3.4cm*1.1cm
Therefore the volume of the block is = 1.4*3.4*1.1 = 5.236 cm3
12. 1 US cup = 236.59 ml water
1 US teaspoon = 4.93ml water
1.385 cups water = 1.385*236.59 = 327.677 ml water
Therefore the number of teaspoons = 327.677/4.93 = 66.466 teaspoons of water
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.