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An aqueous solution contains 0.180g of an unkown, nonionic solute in 50.0g of water. The solution freezes at -0.1455 degrees C. what is the molar mass of the solute?
Explain how you would carry out these two reactions and why you obtain the products you indicate
what is the approximate value of the equilibrium constant Kn for the neutralization of nitrous acid with ammonia shown in the equation below?
A mass of 57 g of lead fishing weight absorbs heat of 146 Calories. Determine its final temperature If its initial temperature =48 Centigrade,?
Sulfur dioxide gas is oxidized in 50 percent excess air with 70 percent conversion to sulfur trioxide. The gases enter the reactor at 350 oC and leave at 450 oC.
At a certain temperature and pressure 2.8 L of N2 reacts with 4.2 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure.
A solution was prepared by mixing 43.00 mL of 0.190 M HNO3 and 108.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
A 41 kg person drinks 280. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 18% of the energy in milk is converted to mechanical work,
A 1.5618-g sample containing sulfate ion was treated with barium chloride reagent, and 0.2321 g of barium sulfate was isolated. Calculate the percentage of sulfate ion in the sample.
prepare a schematic diagram of the work up procedure, including the column chromatography with acetylferrocene, diacetylferrocene, ferrocene
A graduate student tried to make -fluorophenylmagnesium bromide by adding magnesium to an ether solution of -fluorobromobenzene.
Calculate the pH during the titration of 30.00 ml of 0.1000 M KOH with 0.1000 M HBr solution after the following additions of acid.
A weather balloon at Earth's surface has a volume of 4 L at 285 K and 791 mmHg. If the balloon is released and the volume reaches 4.19 L at 711 mmHg.
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