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Aniline is basic good electron pair donor. Acetanilide, nevertheless is neutral/not basic. Use structural formulae and resonance to explain this difference in basicities.
A 50.0 ml sample of 0.100 M HClO4 is titrated with 20.0 ml of 0.200 M NaOH. What is the pH of the resulting solution
Imagine that your water heater has broken, but you want to take a bath. You fill your bathtub with 25 kgof room-temperature water (about 25c ). You figure that you can boil water on the stove and pour it into the bath to raise the temperature The ..
If a sample of 6.022 g of CH4 is enclosed in a 30 L container at 402 K. What is its pressure in atmospheres?The volume is reduced to 12 L at constant temperature. What is the new pressure in atmospheres.
Background: a 5.0 ml sample of a protein is in a solution of 0.5 M NaCl. This solution is placed in dialysis tubing to remove as much NaCl as possible. In theory, the final concentration of NaCl should be the same inside as outside of the dialusis..
The directions state 'weigh about 5 grams of sodium chloride'. Give minimum and maximum amounts of sodium chloride that would satisfy these instructions.
Calculate the total concentration of lead dissolved ([Pb]total) in a solution saturated with PbI2(s) and containing dissolved I- with a concentration of [I-] = 0.294 M. The solubility of lead is governed by the reactions shown below.
In 13C NMR, splitting of spectral lines is due to: A) coupling between a carbon atom and protons attached to that carbon atom b) coupling between a carbon atom and protons attached to adjacent carbon atoms
In elemental analysis combustion is used to analyze for C, H and N content by weight. To analyze for halogen content a variation of the following experiemnt can be used.
The temperature of the mixture is 0? , and the total pressure is 1.00 atm . How many grams of helium are present in the gas mixture? Mass of He =?
A 4.50G sample of LiCl at 25.0 degree celcius dissolves in 25.0 mL of water also at 25.0 degree celcius. The final equilibrium temperature of the resulting solution is 60.8 degree celcius. What is the enthalpy of solution of LiCl expressed in kilo..
0.982 g sample of KHP (this is not potassium-hydrogen-phosphorus) is dissolved in water and titrated to the equivalence point with 26.45 mL of NaOH solution. What is the concentration (M) of the NaOH solution
A compound of bromine and fluorine is used to make UF6, which is an important chemical in processing and reprocessing of nuclear fuel. The compound contains 58.37% by mass of bromine. Determine its empirical formula.
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