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Calculate the individual concentrations of C and of D in the following unknown mixture: Compound C: Absorbance at 365nm = 0.150 Absorbance at 470nm = 0.642 Concentration = 1.00 X 10^-4 Compound D: Absorbance at 365nm = 0.684 Absorbance at 470nm = 0.088 Concentration = 2.00 X 10^-4 Unknown Mixture: Absorbance at 365nm = 0.721 Absorbance at 470nm = 0.604 Concentration
The neutralization of 50.0 mL of 1.00 M hydrochloric acid with 50.0 mL of 1.00 M sodium hydroxide causes a 6.7°C increase in temperature. Predict how the following changes to the experimental protocol would affect the value of the change in temper..
A 32.65-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 50.00 ml.
How is the equilibrium yield of C6H12O6 affected by each of the following? 6 CO2(g) + 6 H2O(l) + HEAT C6H12O6(s) + 6 O2(g) (a) increasing PCO2 increases decreases no effect
the concentration of co2 in the soda is 0.14M. find the concentration of CO2 in the soda after the bottle is opened, and equilibrates at a partial pressure of 3.0 X 10^-4 atm. The henry's law constant is 3.4 X 10^-2 mol/L atm.
what is the balanced molecular equation for the reaction between lithium phosphate
How many grams of DRY alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield? How many grams of WET alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield
The specific rotation, [?]D, for (+)-tartaric acid is +12. What is the observed rotation for a solution of 0.75 g of (+)-tartaric acid in 10 mL of water in a sample tube having a pathlength of 10 cm?
Calculate the standard reduction potential and standard apparent free energy change for the transfer of a pair of electrons from FADH2 to 1/2O2. Show all calculations.
How many grams of chromium would be electroplated by passing a constant current of 5.2 amperes through a solution containing chromium(III) sulfate for 45.0 minutes?
Epsom Salts is a hydrate, which means that a certain number of water molecules are included in the solid structure. The formula for epsom salt can be written as MgSO4* X H2O
the hydrogen atom relaxes to a lower energy level, emitting light of 397nm. What is the value of n for the level to which the electron relaxed
Calculate the transformation rate for the austenite-to-pearlite transformation at 650 °C and at 600 °C. Show the relationship(s) you used to arrive at your answers.
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