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Some water was added to the initial reaction mixture of 5mL water, 5.55g sodium bromide and 5 mL butanol in the procedure that was perfromed to obtain 1-bromobutane from 1-butanol.
a. How might the yield of 1-bromobutane be affected if the water were not added, and what product(s) would be favored?
b. How might the yield of product be affected by adding twice as much water as is specified, while keeping the quantities of the other reagents the same?
when mixture A at 273 K is heated to 473 K, mixture B results. How many different chemical changes occur? How many different physical changes occur?
If 22 mL of 5.8 M H_2SO_4 was spilled, what is the minimum mass of NaHCO_3 that must be added to the spill to neutralize the acid.
A mixture of CaCO3 and CaO weighing 0.705 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.474 g.
What is the molar concentration of the solution? How many moles of solute are in the solution? What is the molar mass of the solute?
container Ais filled with air at STP, it is then inserted into a large enclosed container B, which is then flushed with H2(g), what will happen to the pessure inside container A? explain your answer.
light of wavelength 221nm striking a sample of tungsten causes electrons to be ejected with a speed of 6.04x10^5 m/s. calculate the work function of tungsten
Determine the freezing point and calculate the final temperature if initially this iron nail was at temperature of 28 degree Celsius?
In the laboratory, a student named Georgia weighed 4.75 grams of an unknown solid mixture containing benzoic acid, copper (II) sulfate and sand. She added 15mL of acetone to her sample. Which component of the mixture is dissolved in the acetone?
How many grams of Helium does a 25.0 Liter balloon contain at 102.0 kPa and 24 degrees Celsius?
A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women.
The reaction is first order, and the rate constant is 6.70x10^-4 s^-1. If the initial concentration of cyclopropane is .0577 M, what is the molarity of it after 37.2 minutes?
energy to heat a certain sample of pure silver from 12.0 C to 18.2 C. Calculate the mass of the sample of silver.
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