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Describe the preparation of 12 mL of a 0.050 M solution of each of the halogens, using the reactions in the preceding question. Available to you are solid Ca(OCl)2; 0.20 M solutions of NaCl, NaBr, NaBrO3, and CuSO4; a 0.40 M solution of NaI; a 0.50 M solution of H2SO4; distilled water; and a 10-mL graduated cylinder (where volumes can be read to the nearest 0.1 mL). Calculate the required quantity of each reagent and the volume of water that must be added for dilution.
a. Chlorine water
b. Bromine water
c. Iodine water
Ba(NO3)2 is 20.92 mass % chlorine, and a 1.000 g sample of the mixture in 500.0 mL of aqueous solution at 25 C has an osmotic pressure of 744.7 mm Hg. What are the mass percents of KCl, KNO3, and Ba(NO3)2 in the mixture?
They started with 0.47 grams of a mixture containing 0.143 grams of the acid and recovered 0.117 grams of benzoic acid. What was their percent recovery?
a gas sample in an open manometer system has a pressure of 530 mmHg . The mercury column has a height of 545 mm on the gas sample side and a height of 425 mm on the air pressure side. what is the value of the air pressure in mmHg?
A buffer is prepared by mixing 184 mL of 0.442 M HCl and 0.500 L of 0.400 M sodium acetate
The LiAlH4 reaction with ketones and that you must use a anhydrous aprotic solvent with it because of how violent it reacts with water and alcohols, What WOULD actually happen if it reacted with an alcohol? for instance butan-1-ol? Since this isnt..
Given: H-H bond energy = 435 kJ, Cl-Cl bond energy = 243 kJ, and the standard heat of formation of HCl(g) is -92 kJ/mol, calculate the H-Cl bond energy.
the boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2degc.
For the following reaction, 3.00 grams of chlorine gas are mixed with excess sodium iodide. The reaction yields 4.38 grams of sodium chloride.
if 488 g so2 escaped into the atmosphere and all the escaped so2 were converted to h2so4. how many grams of h2so4 would
NO(2) + CO--> NO +CO(2) is 125 Kj/mol and delta E for reaction is -216 kJ/mol. What is the activation energy for the reverse reaction. (NO+CO(2)--> NO(2) +CO
Molecules can be as small as a few atoms or as large as thousands of atoms. In 1962, Max F. Perutz and John C. Kendrew were awarded the Nobel Prize for their discovery of the structure of hemoglobin
If the final temperature is 23.5 deg C, what was the unknown volume? (no heat was lost to the surroundings, d of water is 1 g/mL)
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