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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Your friend asks, "Is artesian water or spring water necessarily better than water from other sources?" How would you answer?
Explain the nature of the project at issue in the EIS. What is the purpose and need for the proposed action?
I think that an area called Armand Bay in Houston Texas is significant to understanding environmental history for its area.
Problem: In my opinion, the U.S. should indeed pursue the use of more renewable energy sources going forward.
My waste categorized as biodegradable and non-biodegradable. Explain this category bins why you chose to categorize your waste stream
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Question: Which of the following is NOT true of sustainability, as discussed in the final section of "What is Sustainable Urbanism?"