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Why is the Beer - Lambert law in units of absorbance rather than in units percent transmittance?
A flask contains 0.310 of liquid bromine, . Determine the number of bromine molecules present in the flask.
A 355 ml container holds .146g of Ne and an unknown amount of Ar at 35 degrees C and a total pressure of 26 mmHg. Calculate the moles of Ar present
Show how you might synthesize this compound from an alkyl bromide and a nucleophile in an SN2 reaction the compound is an OCH3 attached to cyclohexane
The sample is placed in a drying dish (weight = 0.5000 g before the sample is added), and then placed in an oven at 104°C until all the moisture is evaporated
When 28 mL of a 430 mL stock solution containing 2.3 M AlCl3 is diluted to 114 mL, how many moles of Al3+ are in the new solution?
the property of mercury that allows it to form an amalgam with gold has been used in thee mining industry for hundred of years. during the boom in california in the 19th century, it is estimated that 3.0X10^6 pounds of gold were produced using thi..
Using Le Chateleir's principle, explain the effect on teh cell potential of decreasing the Fe2+ ion concentration from 1.0M to 0.1M for each of the following reactions. The concentration of the other solution remains at 1.0M.
Calculate the equilibrium constant, Ka for the acid, HA if, at equilibrium, the pH of a 2.1 M solution of HA is 3.43
soultion of silver nitrate is mixed with 400.0 ml of 0.200 M calcium chloride. What is the concentration of cl- in solution after the reaction is complete
During the initial stages of method development, the researcher was unable to separate anthracene and naphthalene with baseline resolution. From the options below, select all possible modifications the researcher could make to improve the resoluti..
ichromate solution is 0.0189 M dichromate, and it took 26.01 mL of your standard iron solution to titrate the excess dichromate in an unknown. What is the chemical oxygen demand of the sample, in units of mg O2/L?
if your spectrophotometer can measure absorbance up to 1.5, what is the max concentration of nadh that your can measure
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