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What is hydrogen bonding and how might hydrogen bonding be used to explain the substantial difference in boiling between ethanol CH3CH2OH (grain alcohol) and dimethyl ether (CH3OCH3)?
A solution is prepared by mixing 85.0 mL of 5.00 M HCl and 25.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for this solution.
To 1.00 L of a 0.100 M aquoeus solution of the weak base pyridine C5H5N is added 1.00 ml of 14.0 M NaOH. What fraction of the pyridine molecules in the resulting solution react with water to release hydroxide ions? (Kb C5H5N = 1.7 x 10^-9)
Using the van der Waal constants for methane in table 1.3 (a=2.283, b=0.04278) to calculate the initial slopes of the plots of the compressibility factor
Three resonance structures of the following cation are possible. One resonance form is given below, but it is incomplete. Complete the given structure by adding non-bonding electrons and formal charges where necessary
Copper has a density of 8.900 g/cm^3. How many centimeters cubes would be displaced If 35 kg of copper pellets were poured into a barrel of water
pure ethanol has a density of 0.78945 gcm sup3 at 20.0 degc and 0.80625 gcmsup3 at 0.0deg c. what will be the
Problem- Rank these species by their ability to act as an oxidizing agent from best oxidizing agent to poorest oxidizing agent
A sample of gas occupies a volume of 569mL at 1.24 atm and 106 celsius. Calculate the temperature of the gas if its pressure is changed to 1.12 atm while its volume its constant.
Identify the chiral centers with asterisks and label each center as R or S. 5. How might you use 13C NMR spectroscopy to determine if the brominated product is contaminated with some unreacted starting material (during the bromination of trans-cin..
Question- How much energy (in kilojoules) is needed to heat 5.30g of ice from -11.5?C to 24.0?C? The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K?mol) for ice and 75.3 J/(K?mol) for liquid water.
Problem- One proposed route to make ibuprofen required a Friedel-Crafts Alkylation between 1-bromo-2-methyl propane and 2-phenyl-propanoic acid. This route failed to give the correct product. Draw out the structure of the two starting materials
Stearic acid, nature's most common fatty acid, dimerizes when dissolved in hexane. The equilibrium constant for this reaction at 28 degrees Celsius is 2,900.
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