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Polarization.
A beam of unpolarized light is sent through two polarizing sheets placed one on top of the other. What must be the angle between the polarizing directions of the sheets if the intensity of the transmitted light is to be one-third the incident intensity?
Mg + 2HCl --> MgCl2 + H2 For a mass of 0.013 g Mg and 5.0 mL of 1.00 M HCl, in a flask with V = 140.612 mL at 23.5?C. Calculate the vapor pressure of H2 and vapor pressure of water.
A complex ion, [M(H2O)6]2+, is green in solution. Which of the following ligands, when bound to the same metal might cause the solution to be orange
Outline the reaction mechanism of 3-methylcyclopentene with water and sulfuric acid catalyst.
Perform a financial analysis for a project. Assume the projected costs and benefits for the project are spread over five years as follows: Estimated costs are $300,000 in year 1 and $50,000 in years 2-5.
Pure metals are commonly recovered from sulfide ores by successive processes of roasting in air (oxidation), dissolution in sulfuric acid and electrolysis (reduction). Consider the starting ore mineral sphalerite (ZnS). Write balanced chemical rea..
Given that the total concentration of molecules in air decreases with increasing altitude, would you expect the relative concentration of ozone
What is the molality of a 25.5% aqueous solution of phosphoric acid, H3PO4 (M = 97.99 g/mol)
Why is this a reasonable assumption for those products, but not for cyclohexane and toluene?
A certain reaction has an enthalpy of change in H = 54 kJ and an activation energy of Ea=81 kJ. What is the activation energy of the reverse reaction
All of the sulfate ion is in the precipated as barium sulfate. the mass of Barium Sulfate 0.5032g . What is the average mass of saccharin per tablet ? What is the % mass of saccharin per tablet?
Suppose a sample containing 1.200g of Compound X is heated in 25.0 mL of heptane. What is the minimum temperature required to dissolve the sample. If the sample were then cooled to 0 degrees, what would the percent recovery of the solid that would..
If 85.6 ml of a 6.75 M solution are diluted to 6.20 L with water, what is the concentration of the final solution
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