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A 3.80 g sample of a laboratory solution contains 1.63 g of acid. What is the concentration of the solution as a mass percentage?
A sample of helium has a volume of 3 liters when the pressure is 500 torr. What volume does the gas occupy at 300 torr?
The compound 2-methyl-1,4-pentadiene would be classified as what type of diene? Select the least stable diene listed below
Suppose that a 25-mL sample of a solution is to be tested for I- ion by addition of 1 drop (0.20 mL) of 0.27 M Pb(NO3)2. What is the minimum number of grams of I- that must be present
A metal, M, was converted to the chloride, MCl2. Then a solution of the chloride was treated with silver nitrate to give silver chloride crystals
If an automobile is able to travel 242 mi on 12.0 gal of gasoline, what is the gas mileage in km/L
2NO+O2 makes NO2, what mass of NO2 is formed when NO reacts with 384g O2?, how many grams of NO are required to react with this amount of O2?
If 5.40 mol calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2) will be produced?
When extracting caffeine from tea why do you have to use cold NaOH and water vs. room temperature
If you look at a reaction for an esterification reaction, you cannot tell where the oxygen comes from (acid or alcohol). Draw the mechanism of this reaction, and devise an experiment using the mechanism and O18 (O18 isotope) to help prove unequivo..
If iron is oxidized to Fe2+ by a copper(II) sulfate solution, and 0.434 grams of iron and 12.2 mL of 0.52M copper(II) sulfate react to form as much product as possible.
Zn (s) + 2HCl (liq) -> H2 (g) + ZnCl2 (s), How many moles of ZnCl2 form when 6.3 mol of Zn reacts?
A certain organic compound was burned, producing 1.481 g of CO2 and 0.303 g of H2O. The mass of the original sample was 0.438 g. What is the empirical formula of the compound?
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