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What observed rotation is expected when a 1.02 M solution of (R)-2-butanol is mixed with an equal volume of a 0.510 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long? The specific rotation of (R)-2-butanol is -13.9 degree mL g-1 dm-1.
How much HCl gas can be produced at STP by reacting 198 g of NaCl with excess H2SO4?NaCl + H2SO4 ! NaHSO4 + HCl.
Show your calculations and determine the half-life of Tc-99 (in hours). (b)The delivery of a sample of Tc-99 from the reactor to the nuclear medicine lab of the hospital takes 3h.
If 2 new elements have been discovered and one is R, a new element from the family with 3 valence electrons and Z, a new element from the family with 6 valence electrons. Write the formula for the binary compound between element R and element Z.
The combustion of butane produces heat according to the equation 2C4H10(g) + 13O2(g) -> 8CO2(g) + 10H2O(l) ->H°rxn = -5,314 kJ/mol What is the heat of combustion per gram of butane
At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively. If 7.50 mol benzene is mixed with 6.64 mol toluene
when solid copper is added to nitric acid, copper nitrate, nitrogen dioxide, and water are produced. write the balanced chemical equation for the reaction list sis mole ratios for the reaction.
A gas sample containing 1.60 mol at 25°C exerts a pressure of 391 torr. Some gas is added to the same container, and the temperature is increased to 50.°C. If the pressure increases to 800. torr, how many moles of gas were added to the container? ..
When 284.5 g of ethylene (C2H4) burns in oxygen to give carbon dioxide and water, how many grams of CO2 are formed?
Find the name of hazardous chemicals and write formula and how will handle these hazardeous chemical in the lab from below ammonia, bleach, dish detergent, hand sanitizer, hand soap, lemon juice, shampoo, codium bicarbonate, vinegar, sodium hydrox..
A student determines the molar mass of methanol. She found that the equilibrium temperature of a mixture of ice and pure water was 0.4 degrees C on her thermometer
what is the purpose of the anhydrous cacl2? the important that none of the solid cacl2 be included in the final distillation of 1-bromobutane.
what is your prediction for the next reaction?
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