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Presume that 1.02 g of rubbing alcohol (C3H8O) evaporates from a 57.0 g aluminum block. Explain if the aluminum block is initially at 25, Explain what is the final temperature of the block after the evaporation of the alcohol? Presume that the heat required for the vaporization of the alcohol comes merely from the aluminum block as well as that the alcohol vaporizes at 25.
The density of a human body can be approximated by the density of water, which is equal to 1.000 x 103 kg/m3. What volume will a 185 lb person occupy in liters
A solution is prepared by adding 1.10 g of solid rm NaCl to 50.0 mL of 0.100 M {CaCl_2}. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.
The elements X and Y form a compound that is 33.33% X and 66.67% Y by mass. The atomic mass of X is twice that of Y.What is the empirical formula of the compound?
In an experiment, 0.32 mol H2 and 0.32 mol I2 are mixed in a 1.00-L container, and the reaction forms HI. If Kc = 49. for this reaction, what is the equilibrium concentration of HI?I2(g) + H2(g) 2HI(g)
calculate the amount of work done against an atmospheric pressure of 1.00 atm when 500.0 g of zinc dissolves in excess
Explain why you are sometimes unable to make a direct comparison of maximum deviation with the imprecision of the measurements
In an electrolysis cell similar to the one employed in this experiment, a student observed that his unknown metal anode lost 0.238 g while a total volume of 84.90 mL of H2 was being produced.
What sequence of steps represents the best synthesis of 4-heptanol (CH3CH2CH2)2CHOH?
from the plots of the boiling point versus the volume of distillate in either of the fractional distillations of the ethanol-water mixture,what conclusion can you draw about the homogeneity of the distillate?
Barium Nitrate is a not very soluble nitrate. Calculate the Ksp (at 25 degrees) from the following ΔG's
How many grams of oxygen are collected in a reaction where 222 mL of oxygen gas is collected over water at a temperature of 25°C and a total pressure of 697 torr?
calculate the amount of heat transferred when 2.7 g of rm mgrm s reacts at constant
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