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Explain what is entropy and Why are we interested in entropy? Define what information can it tell us about chemical reactions?
If Dan is working in the lab and measures the mass of an iron rod to be 1.25 g and the accepted value from the instructor was given as 1.30 g, what was dan's percent error
You are given the masses, in grams (g), and the volumes, in cubic centimeters (cm3), for a series of substances. Arrange them in order of increasing density(Lowest to Highest)
Hydrogen atoms that are bonded to an sp3 hybridized carbon atom normally appear between 0.9 & 1.8 ppm and are said to be shielded
Assume that the H2O2 solution has a density of 1.0g/cm3. What would the mass of 35cm3 of the H2O2 solution be?
determine the pressure in a 125-L tank containing 56.2 kg of oxygen gas at 21.0 oC
What is the minimum external voltage must one supply in orger to perform the electrolsis of molten CaCl_2(l)? Suggest a means for supplying this energy.
(a) calculate the percent transmittance of this solution,(b) the percent transmittance in 2.50 cm cell (c) the molar absorptivity of the complex
If you compare the melting point of a slightly impure mixture with the melting point of a pure compound, the melting point of the slightly impure mixture will be: a) broader and lower than the eutectic mixture
sand and iron particales that are similar in size and color are mixed together in a beaker. what would be the best
if you were monitring the titation by visivle spectroscopy what wavelength would you select for the data analysis? why?
What is the new molarity of a solution when 650mL of water are added to 500.0mL of a 3.2 molar solution?
Determine the degree of unsaturation for C5H8. Draw constitutional isomers of C5H8 that are terminal and internal. Name each molecule according to IUPAC.
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