EBK GENERAL CHEMISTRY
11th Edition
ISBN: 8220103631259
Author: Bissonnette
Publisher: YUZU
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Textbook Question
Chapter 1, Problem 47E
A 2.18 L sample of butyric acid, a substance present in rancid butter, has a mass of 2088 g. What is the density of butyric acid in grams per milliliter?
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Experiment:
Each team will be provided with 5g of a mixture of acetanilide and salicylic acid. You will divide it into three 1.5 g portions in separate 125 mL Erlenmeyer flasks savıng some for melting point analysis. Dissolve the mixture in each flask in ~60mL of DI water by heating to boiling on a hotplate. Take the flasks off the hotplate once you have a clear solution and let them stand on the bench top for 5 mins and then allow them to cool as described below.
Sample A-Let the first sample cool slowly to room temperature by letting it stand on your lab bench, with occasional stirring to promote crystallization.
Sample B-Cool the second sample 1n a tap-water bath to 10-15 °C
Sample C-Cool the third sample in an ice-bath to 0-2 °C
Results:
weight after recrystalization and melting point temp.
A=0.624g,102-115°
B=0.765g, 80-105°
C=1.135g, 77-108
What is the percent yield of A,B, and C.
Chapter 1 Solutions
EBK GENERAL CHEMISTRY
Ch. 1 - What are the principal reasons that one theory...Ch. 1 - Prob. 2ECh. 1 - A common belief among scientists is that there...Ch. 1 - Describe several ways in which a scientific law...Ch. 1 - Describe the necessary characteristics of an...Ch. 1 - Describe the necessary characteristics of a...Ch. 1 - State whether the following properties of matter...Ch. 1 - State whether the following properties are...Ch. 1 - Indicate whether each sample of matter listed is 8...Ch. 1 - Indicate whether each sample of matter listed is...
Ch. 1 - Suggest physical changes by which the following...Ch. 1 - What type of changephysical or chemicalis...Ch. 1 - Express each number in exponential notation....Ch. 1 - Express each number common decimal form. a....Ch. 1 - Express each value in exponential form. Where...Ch. 1 - Express each value in exponential form. Where...Ch. 1 - Indicate whether each of the following is an exact...Ch. 1 - Indicate whether each of the following is an exact...Ch. 1 - Prob. 19ECh. 1 - How many significant figures are shown in each of...Ch. 1 - Perform the following calculations; express each...Ch. 1 - Perform the following calculations; express each...Ch. 1 - Perform the following calculations and retain the...Ch. 1 - Express the result of each of the following...Ch. 1 - An American press release describing the 1986...Ch. 1 - Prob. 26ECh. 1 - Perform the following conversions. a. 0.127L=mL b....Ch. 1 - Prob. 28ECh. 1 - Perform the following from non-SI to SI units....Ch. 1 - Prob. 30ECh. 1 - Which is the greater mass, 3245 (g or 0.00515 mg?...Ch. 1 - Which is the greater mass, 3257 mg or 0.000475 kg?...Ch. 1 - The non-SI unit, hand (used by equestrians), is 4...Ch. 1 - The und furlong is used in horse racing. The unis...Ch. 1 - A sprinter runs the 100 yd dash in 9.3 s. At this...Ch. 1 - A non-SI unit of mass used in Pharmaceutical work...Ch. 1 - Prob. 37ECh. 1 - In an engineering reference book, you find that...Ch. 1 - Prob. 39ECh. 1 - The volumeofaredbloodcell isabout 90.010-12cm3 ....Ch. 1 - We want tomark offathermometer in it Celsius and...Ch. 1 - The highestandlowesttemperatures on record for San...Ch. 1 - The absolute zero of temperature is -273.15C....Ch. 1 - Prob. 44ECh. 1 - Prob. 45ECh. 1 - Prob. 46ECh. 1 - A 2.18 L sample of butyric acid, a substance...Ch. 1 - A 15.2 L sample of chloroform at 20 C has a mass...Ch. 1 - To determine the density of acetone, a 55.0 gal...Ch. 1 - To determine the volume of an irregularly shaped...Ch. 1 - A solution consisting of 8.50% acetone and 91.5%...Ch. 1 - Prob. 52ECh. 1 - A fertilizer contains 21% nitrogen by mass. What...Ch. 1 - A sample is found to have a density of 1.006 g/mL,...Ch. 1 - Prob. 55ECh. 1 - Calculate the mass of a cylinder of stainless...Ch. 1 - The densities are given at 20 C: water, 0.998g/cm3...Ch. 1 - To determine the approximate mass of a small...Ch. 1 - The density of aluminum is 2.70 g/ cm3. A square...Ch. 1 - The angle iron pictured here is made of steel with...Ch. 1 - In normal blood, there are about 5.4109 red blood...Ch. 1 - A technique once used by geologists to measure the...Ch. 1 - In a class of 76 students, the results of...Ch. 1 - A class of 84 students had a final grade...Ch. 1 - Prob. 65ECh. 1 - A solution containing 12.0% sodium hydroxide by...Ch. 1 - According to the rules on significant figures, the...Ch. 1 - Prob. 68IAECh. 1 - A solution used to chlorinate a home swimming pool...Ch. 1 - A standard 1.000 kg mass is to be tut from a bar...Ch. 1 - Prob. 71IAECh. 1 - Prob. 72IAECh. 1 - Magnesium occurs in seawater to the extent of 1.4...Ch. 1 - A typical rate of deposit of dust ("dustfall")...Ch. 1 - In the United States, the volume of irrigation...Ch. 1 - A Fahrenheit and a Celsius thermometer are...Ch. 1 - The accompanying illustration shows e 100.0 mL...Ch. 1 - Prob. 78IAECh. 1 - Prob. 79IAECh. 1 - A pycnometer (see Exercise 78) weighs 25.60 g...Ch. 1 - The Greater Vancouver Regional District (GVRO)...Ch. 1 - A Boeing 767 due to fly from Montreal to Edmonton...Ch. 1 - The following equation can be used to relate the...Ch. 1 - Prob. 84IAECh. 1 - A tabulation of datalists the following equation...Ch. 1 - The total volume of ice in the Antarctic is about...Ch. 1 - An empty 3.00 L bottle weighs 1.70 kg. Fled with...Ch. 1 - The filament in an incandescent light bulb is made...Ch. 1 - Blood alcohol content (BAC) is sometimes reported...Ch. 1 - In an attempt to determine any possible...Ch. 1 - Prob. 91FPCh. 1 - Prob. 92FPCh. 1 - The canoe gliding gracefully along the water in...Ch. 1 - The accompanying sketches suggest four...Ch. 1 - As mentioned on page 13, the MCO was lost because...Ch. 1 - In your own words, define or explain the following...Ch. 1 - Prob. 97SAECh. 1 - Explain the important distinctions between each...Ch. 1 - A procedure designed to test the truth or the...Ch. 1 - The fact that the volume of a fixed amount of gas...Ch. 1 - If a sample of matter cannotbe separated by...Ch. 1 - A good example of a homogeneous mixture is a. a...Ch. 1 - Compared withits mass on Earth, the mass of the...Ch. 1 - Which answer has the correct number of significant...Ch. 1 - Which two of the following masses are expressed to...Ch. 1 - Prob. 106SAECh. 1 - Prob. 107SAECh. 1 - Prob. 108SAECh. 1 - The density of water is 0.9982 g/cm2 at 20C....Ch. 1 - Two students each made four measurements of the...Ch. 1 - Prob. 111SAECh. 1 - List the blowing the order of increasing...Ch. 1 - Without doing detailed calculations, explain which...Ch. 1 - Prob. 114SAECh. 1 - Water, acompound, is a substance. Is there any...Ch. 1 - In the production of ammonia, the...Ch. 1 - Appendix E descries a useful study aid known as...
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