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A process involving a perfect gas is carried out in which the temperature changes at constant volume. First, the process is carried out for a fixed value of ?T and the mass of the gas is doubled. Then, the process is repeated with the same initial mass and ?T is doubled. For which of these processes is ?S greater? Why?
What is the most stable conformation about the C3-C4 bond of 2,3-dimethylpentane
The temperature of a lead fishing weight rises from 15 oC to 45 oC as it absorbs 22.5 kJ of heat. What is the mass of the fishing weight in grams? Heat capacity of lead is 0.128 J/g oC.
Hydrocyanic acid is a weak acid with Ka = 4.9 x 10-10. What is the pH of a 0.4480 M hydrocyanic solution?
Aqueous hydrobromic acid will react with solid sodium hydroxide to produce aqueous sodium bromide and liquid water . Suppose 36.4 g of hydrobromic acid is mixed with 5.9 g of sodium hydroxide.
Which one of the following is the highest temperature?
For a bond between the same two atoms, which has the greatest bond enthalpy: single bond, double bond, or triple bond
How many grams of lithopone are produced in the reaction of 315ml of 0.275M ZnSO4 and 285 ml of 0.315M BaS?
A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of H2O produced is 23.4 grams, what was the approximate mass of the methane in the original mixture?
names of five alkenes having the molecular formula C6H12 that produce hexane on catalytic hydrogenation
five times in the course of parts a-d of this experiment you were able to dissolve an "insoluble" compound, something that seems like a contradiction in terms, identify each of the 5 compounds and briefly explain what made each of these dissolutio..
A titration required 18.38 mL of 0.1574 M NaOH solution. How many moles of NaOH were in this volume?
Draw the lewis structures for each of the following molecules or ions. Which do not obey the octet rule? (a)NO (b) AlH3 (c) ICl2^- (d) OPBr3 (the P is the central atom) (e) XeF4
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