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in experiment to find emperical formula of magnesium oxide, why the empty crucible and cover fired to red?
Calculate the theoretical yield of C2H5Cl when 123g of C2H6 reacts with 213g of Cl2 , assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl.
A gas mixture contains 1.30g N2 and 0.95g O2 in a 1.57-L container at 22 degrees Celsius. Calculate the mole fraction of N2.
The mass of an average blueberry is 0.78 and the mass of an automobile is 2200kg.Find the number of automobiles whose total mass is the same as 1.0 blueberries.
calculate the final molarity of the solution that results when 125 ml of .200 M HCL is diluted to 1.00L
Compare the chemical structure of the nylon polymer that has been prepared to the polypeptide trimer of glycine, the simplest of the naturally occurring amino acids
While in Europe, if you drive 105 km per day, how much money would you spend on gas in one week if gas costs 1.10 rm euros per liter and your car's gas mileage is 41.0 mi/gal? Assume that 1; rm euro = 1.26; dollars.
if a 2.5 L of Hydrogen is collected over water at 40C and 767 mmHg, what is the volume of dry gas at standard conditions, The vapor pressure of water is 55.3 mmhg at 40 C
Why was acetone added to the reaction mixture only after we briefly mixed the catalyst and the behzaldehyde? 3. Why doesn't the dibenzalacetone product react (via the aldol condensation pathway) with the excess benzaldehyde in the reaction mixture..
If 18.26 grams of sulfuric acid are reacted with a large amount of aluminum metal, what volume of hydrogen gas would be produced at STP?
Calculate the vapor pressure of a solution prepared by dissolving 0.75 mol of safrole in 950 g of ethanol (46.07 g/mol)
A balloon has a volume of 1.20 at 24.0 degrees Celsius. the balloon is heated to 48.0 degrees Celsius. calculate the new volume of the balloon.
If Kp = 0.032 at this temperature, what will be the equilibrium overall pressure starting from pure CaSO4(s)?
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