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Provide a molecular-level explanation for why the absorbance of light increases as the concentration of dissolved food dye in a solution increases. To illustrate your explanation, include two molecular-level pictures of the particles in solution that demonstrate what you think the differences are between a more dilute dye solution and a more concentrated dye solution (one picture should be the dilute solution and one picture should be a more concentrated solution). Be sure your explanations and pictures are clear and understandable. Include labels/legends as needed to understand the pictures. Also, be sure that your picture and written explanation support each other.
Given a concentration of 100 ppm in water, calculate the predicted equilibrium concentration concentration in air for methyl tertiary-butyl ether (MTBE)
150.g of NaCl completely dissolves (producing Na+ and Cl- ions) in 1.00k of water at 25.0C. The vapor pressure of pure water at this temperature is 23.9torr.
Calculate the mass of water produced when 9.11 G of butane reacts with excess oxygen. Express the mass of water numerically in grams.
What is its solubility at a partial pressure in air of 0.00021 atm? Assume that CO2 obeys Henry's Law.
calculate the expected degree of polymerizationand the molecular weight of the polymer if a) all the termination reaction occurs by combination and b) all the termination occurs by disproportionation.
The room temperature and pressure were 23.6 deg C and 763.4 mm Hg respectively. The residue had a mass of 3.1915 grams. What was the partial pressure of oxygen?
The standard deviation of the analytical method was determined to be +/-2.3%. What is the standard deviation overall? And in order to reduce the overall standard deviation to +/- 5.0%
Write the balanced chemical equation and determine How much propane is required to cook a pork roast that needs 1.6x10 3 kJ
a 54.1 gram sample of an unknown hydrocarbon was burned in an excess of oxygen to form 88.0grams of carbon dioxide and 27.0grams of water. what is a possible molecular formula for the hydrocarbon?
how many grams of urea must be added to enough water to obtain 115 ml of a solution with an osmotic pressure of 2.7 atm at 35 degrees celsius
Which carboxyl group is more acidic in 3-chlorohexanedioic acid? The 2 carboxyl groups in 3-chlorohexanedioic acid are not equivalent and have different dissociation constants
Determine how many milligrams of H 2 O are present in sample If the freezing point of a 100.0g sample of 2-methyl-2-propanol =24.59C?
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