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Presume 12.0 g of carbon (C) reacts with 65.0g of sulfur (S) to give 76.0 g of the compound carbon disulfide (CS2). In the process all the carbon gets used up, however some elemental sulfur is left over. For the law of conservation of matter to be obeyed how much sulfur is unused?
How much ice(in grams) would have to melt to lower the temperature 352ml of water from 25degrees celcus to 5 degrees celcus? ( assume the density of water is 1.0g/ml)
Which of the following alkenes can exhibit cis-trans isomerism?
A metal forms the fluoride MF2. Electrolysis of the molten fluoride by a current of 3.86 A for 16.2 minutes deposits 1.07 (backwards "g") of the metal.
The blue color of dextran blue solution is due to the well-known, blue complex formed between starches and iodine. If you only had the absorption spectrum of this solution
will the first drop of liquid n-heptane form? (c) At what operating temperature (°C) will 65% of the n-heptane condense
For a certain process at 25 degrees C, deltaG = -2.4 kJ and deltaH = +1.2kJ. Calculate deltaS for the process.
If 200 ml of gas at 400 torr is transferred to a 20.0 ml cotnainer. What will the new pressure be if the temperature is kept constant?
When 2.13 moles of C3H8 burn in excess oxygen, how many moles of CO2 will be formed assume this is complete combustion
calculate the moles of silver bromide and magnesium nitrate produced by 85 mol of magnesium bromide reacting with silver nitrate.
In the stepwise trihalogenation process of the methyl group in acetophenone the methyl group is initially deprotonated. This deprotonated species which bears a negative charge on the carbon atom is stabilized by resonance.
Using Le Chateleir's principle, explain the effect on teh cell potential of decreasing the Fe2+ ion concentration from 1.0M to 0.1M for each of the following reactions. The concentration of the other solution remains at 1.0M.
Using the values from appendix C in the text calculate the Entropy and Enthalpy changes for the decomposition of ammonia into nitrogen and hydrogen at 298K and 1.0atm. Then determine the temperature at which the gases are in equilibrium with each ..
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