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1. In a common protein analysis, a dye binds to the protein and the color of the dye changes from brown to blue. The intensity of the blue color is proportional to the amount of protein present.
Protein (µg): 0.00(blank) 9.36 18.72 28.08 37.44Absorbance: 0.466 0.676 0.883 1.086 1.280
(a) 10 mL of an unknown sample was placed in a 100 mL volumetric flask and diluted to the mark with the appropriate solvent. This solution gave an absorbance reading of 0.973. Calculate the number of micrograms of protein in the original unknown sample
If 125 cal of heat is applied to a 60.0 g piece of copper at 25.0 C, what will the final temperature be? The specific heat of copper is 0.0920 cal/(g.C}) .
two mwthods were described for determining the volume of the flask used for the molar mass determination.
Determine how many grams of solute would separate if the quantity of the solvent is 129 grams if a saturated solution of ammonium nitrate at 75 °C is cooled to fifteen degree Celsius?
cannot be dehydrated to an alkene without rearrangement. What is the chief product of dehydration?
Given 25.00 mL of the unknown weak acid, 12 mL of NaOH solution was added to the unknown. Leave the unknown weak acid and NaOH concentrations as variables. The pH of the solution is 4.13. What is pKa for the acid
The function (x)=A(x/a)^2(1-(x/a)) is an acceptable wave function for the article in the one-dimensional infinite depth of length a. Calculate the normalization constant a and the expectation value
Identify the compound with the highest wavelength in an UV spectrum. a. benzene b. phenol c. phenolate ion d. aniline e. anilinium ion
Consider the following reaction: CO(g)+H2O(g)in equilibrium with CO2(g)+H2
adiabatic expansion back to its initial temperature, (c) reversible isothermal compression back to 1.00 atm. Calculate q, w, delta U, and delta H for each step.
Compute the final temperature of the mixture (assuming no heat loss to the surroundings). The heat capacities of H2O(s) and H2O (l) are 2.08 and 4.18 J/g · °C, respectively, enthalpy of fusion for ice = 6.02 kJ/mol.
A piece of copper has a volume 640 L. How many atoms does the sample contain.
2 NO(g) +Cl2->2NOCL(g) the observed rate law is Rate= K(NO)^2(Cl2). What is the reaction order with respect to nitrohen monoxide with respect to Cl2? Wht id the overall order
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