Molecules of ethanol
How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 165 mL of ethanol? Density of ethanol is 0.789g/cm3
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Silver nitrate, AgNO3, reacts with ferric chloride, FeCl3, to give silver chloride, AgCl, and ferric nitrate, Fe(NO3)3. In a particular experiment, it was plannned to mix a solution containing 25.0 g of AgNO3 with another solution containing 45.0
suppose 2.3754g of copper(II) sulfate pentahydrate is heated to drive off the water of crystallization. Calculate what weight of anhydrous salt will remain?
Which one, if any, is in excess and by how much? Also, how many moles of water, H2O, would be produced by the reaction?
A d.c machime has a torque angle of 90 degree. When rotating the at 3000rpm with a field current of 1A, the generated voltage is 100v. When the two windings are connected to a a.c supply of 50hz, the field current is 0.1A, the armature
When 36.4 g of calcium and 11.1 g of water are reacted. How many liters of hydrogen gas at a pressure of 727 mm Hg and a temperture of 47.8 °C are produced?
World reserves of chromium are about 800 million tons, and current usage is about 2 million tons per year. if growth in demand for chromium increases exponentially at a constant rate of 2.6 percent per year.
"Isooctane", a fuel used in gasoline engines because it has an antiknock octane rating of 100, has a density of 0.6919 g cm-3. How many pounds would 20.4 gallons of this fuel (a typical full tank) weigh? 1 gallon = 3785 cm3 = 4 quart; 1 pound = 45
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In addition to providing mental health services/referrals for students as a school social worker, what other activities sound realistic
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List down any five factors that contribute to the development of personality. The Nature and Concept of personality Experience Common
Prolonged marital separation resulting from labor migration may create emotional strain, loneliness, increased household responsibilities, and relational challe
Problem: The findings of the Betz 30year study of temperament concluded all of the following except: