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Determine the boiling point of a solution that contains 78.8g of napthalene c10h8 molar mass 128.16 g/mol dissolve in 722 mL of benzene (d = 0.877 g/mol. pure benzene has a boiling point of 80.1*C and a boiling point elevation constant of 2.53*C/m
How many grams of CH4 is needed to produce 49.0 g CHCl3? CH4(g) + 3 Cl2(g)-> CHCl3(g) + 3 HCl(g)
Lewis Structure for a Nitrate Ion (NO3-1). For the correct structure of the nitrate ion, what is the bond angle from O-N-O?
Which pair is written with the first member having the higher boiling point?
is an important oxidizing agent and a moderately strong acid. in a 0.1M solution ,[H+] = 3.8x10^-2M. Calculate the Ka and the pKa for periodic acid.
calculate acidic and basic buffer capacity. How much of strong acid should be added to shift buffer pH one unit down, and how much of the strong base is needed to bring buffer pH one unit up?
Hospital X-ray generators emit X-rays with wavelength of about 15.0 nanometers (\rm nm), where 1\;{\rm nm}= 10^{-9}\;{\rm m}. What is the energy of the X-rays
What is the boiling point of a 0.800 molal solution of sugar in water? Kb = 0.512C/m for water. Sugar does not dissociate in solution and pure water boils at 100C.
Sketch a cell using the following solutions and electrodes. Include the cell potential, the direction of electron flow, and labels for cathode and anode. Ag electrode in 1.0 M Ag + (aq) and Cu electrode in 1.0 M Cu 2+ (aq)
A 4.20 g nugget of pure gold absorbed 299 J of heat. The initial temperature was 22.0°C. What was the final temperature.
When solutions of strong electrolytes are formed in water, the ions are surrounded by water molecules. These interactions may be described as
Methane diffuses approximately 2.43 times as fast as an unknown gas. Which of the following could be and unknown gas?
A sample of 1-naphthoic acid is contaminated with a small amount of sand and NaCl. Using active extraction (changing the polarity) and a gravity filtration to remove a component, describe how you would obtain pure naphthoic acid from this mixture.
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