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Methanethiol, CH3SH, has a substantial dipole mement (1.52) even though carbon and sulfer have identical electronegativities. Explain.
How many moles of magnesium and moles of chlorine ions are present in 123.4 mL of a .345 M solution of magnesium chloride
Converting liquid water to solid ice releases 1.44 kcal/mol. How many kilocalories are released by freezing 2.5 mol of H2O? How many kilocalories are released by freezing 32 g of H2O.
How many liters of ethane, measured at 17.0 degrees Celsius and 719 Torr, must be burned to liberate 2.94 X 10^4 kJ of heat?
A sample of propane,C3H8, contains 13.4 moles of carbon atoms. How many total moles of atoms does the sample contain?
Consider 48.5 mL of a solution of weak acid HA (Ka = 1.00 * 10-6), which has a pH of 4.350. What volume of water must be added to make the pH = 6.000?
the addition of bromine to an equimolar mixture of cis- and trans-2-butene generates only three stereoisomers. Explain.
The normal boiling point of ether is 307.8 K. Calculate the temperature at which its vapor pressure is exactly half of that at its normal boiling point.
What happens to it after bromination of Cholesterol takes place? (ie- why is it that bromination allows you to separate it from cholesterol?) 3) Give a stepwise mechanism for the debromination step
If a 190 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.4x1.0 ft , what is the average thickness of the sheet in meters?
A 125 mL sample of dry air at 230 degrees celcius is cooled to 100 degrees celsius at constant pressure. What volume will the dry air occupy at 100 degrees celsius.
Determine how many pills does the female require to take each time she wants the dosage of 375miliigrams?
an adult person radiates heat to the surroundings at about the same time as a 100-watt lightbulb. what is the total amount of energy in kcal radiated to the surroundings by an adult in 24 hrs?
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