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Problem- The standard entropy of vaporization of acetone is approximately 85 J/K mol at its boiling point. (a) Estimate the standard enthalpy of vaporization af acetone at its normal boiling point of 56.2 degrees C. (b) What is the entropy change of the surroundings when 10. g of acetone, CH3COCH3, condenses at its normal boiling point?
State your answer by means of two significant figures.
Suppose that you are going to collect H2 gas produced from the reaction of an acid with a metal such as zinc. This reaction gives off heat, so the tem perature of the solution will increase as the reaction proceeds.
How much heat in is evolved or absorbed in the reaction of 2.28 grams of sodium ( Na) with water( H 2 O), express your answer in kilocalories?
Calculate approximately the heat released when you are given a chemical equation as 2-methyl-1-propene CH 3 ) 2 C CH 2 reacts
write an equation that represents the reaction of 2% ethanolic PBP solution with 4- methlycyclohexene and name
1. the valve between a ten litre tank containing a gas at a pressure ofnbsp 1 atm and a three lite tank containing a
Determine which is the limiting reagent and how many grams of excess reagent remain unreacted. Calculate the theoretical yield of the reaction
a brick has a mass of 4.0kg and the earth has a mass of 6.01027g.be sure your answers have the correct number of
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Glass will dissolve in concentrated solutions of either NaOH or KOH. At 25C the two reactions below tae place at the same rate. 4NaOH + SiOH2 -->Na4SiO4 + 2H2O is reaction 1. reaction 2 is 4KOH + SiO2 ---> K4SiO4 + 2H2O
1. What is the sum of the coefficients when the following is balanced 2. Cryolite is a compound needed for the Hall-Heroult process for aluminum. Cryolite is produced by the following reaction
Amides undergo hydrolysis to carboxylic acids on treatment with alkali. Diagram a suitable mechanism for the conversion of benzamide to benzoic acid
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