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(a) Draw the configurational isomers of 1-bromo-4-methylcyclohexane.
(b) Draw the conformational isomers of the structures drawn in 1(a).
(c) Looking at all the structures in 1(a) and 1(b) circle the structure which is most stable and explain why.
A polyatomic ion containing an unknown element, E, has the chemical formula EO3 with -1 charge, and has 26 total electrons. Provide 3 possible identities of element E
What was the pH at the end of the reaction? e) What would the final pH be in the absence of any buffer?
given that the molar enthalpy of vaporization delta h for H2O(l) is 44kj at 298k, what is the standerd enthalpy change for the reaction 2H20(G)+ O2(g)---->2H2O(G)?
If the absorbance of one of your samples is off scale, what is the most likely problem?
55.0 mL of a 1.70 M solution is diluted to a volume of 288 mL. A 144 mL portion of that solution is diluted using 181 mL of water. What is the final concentration?
If a raindrop weighs 53 mg on average and 5.1 105 raindrops fall on a lawn every minute, what mass (in kg) of rain falls on the lawn in 3.0 h.
The solute increases the volume of the solution, and an increase in volume requires an increase in the temperature to reach the boiling point (derived from PV = nRT).
HNO3 by mass and has a density of 1.047 g/mL. What is the pH?
A solution is prepared by mixing 87.0 mL of 5.00 M HCl and 36.0 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.
150.g of NaCl completely dissolves (producing Na+ and Cl- ions) in 1.00k of water at 25.0C. The vapor pressure of pure water at this temperature is 23.9torr.
If the pressure of a gas is 39.18 atm in a piston, what is the final pressure, in atm, if the volume of the piston is multiplied by 4 at a constant temperature?
What was the mass percent of dissolved solids in the sea water? b.) The actual solution chloride content in the sea water was 2.69%
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