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While A solution containing 10-5 M ATP has a transmission of 0.702 (70.2%) at 260 nm in a 1 cm cuvette. Compute a) the transmission of the solution in a 3 cm cuvette, b) the absorbance and transmission of a 5 x 10-5 M solution in a 1 cm cuvette. and c ) the absorbance of the solution in a 1 cm and in a 3 cm cuvette
What is the pH of this solution? What is the concentration of the molecular species H3PO4?
what are the boiling point and freezing point of a 2.47m solution of naphthalene in benzene? the boiling point and
What are the direction and magnitude of the velocity of plane 1 relative to plane 2? What is the Degrees? ° north of east
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3CHCl2. Drag the appropriate splitting patterns to the approximate chemical shift positions; place the integration values in the small bins above the associated chemical s..
Determine the empirical formula and the molecular formula of the organic compound. empirical and molecular formula
Write out a step by step extraction to separate mixture of toluene, 4-methoxybenzoic acid, and benzylamine into pure compounds. All of the molecules are organic soluble in dichloromethane.
A buffer solution contains 0.386 M NH4Cl and 0.316 M NH3 (ammonia). Determine the pH change when 0.064 mol HBr is added to 1.00 L of the buffer
If the instantaneous initial rate of reaction is 0.000145 M/s, calculate the initial instantaneous rate of change of H2 concentration. In addition, explain the answer using words.
What is the percent dissociation of HNO2 when 0.056 g of sodium nitrite is added to 115.0 mL of a 0.057 M HNO2 solution? Ka for HNO2 is 4.0 × 10-4.
a gaseous mixture containing 20 moles of nitrogen 10 moles of oxygen and 5 moles of methane exerts a total pressure of
Briefly explain why caffeine will prefer the methylene chloride solvent to the water solvent? draw the structure for all 3 compounds?
The Ka of HNO2 is 7.1 x 10^-4. Use this to find the volume (mL) and pH of 0.0588 M KOH needed to reach the equivalence point(s) in titrations of 28.5 mL of 0.0380 M HNO2.
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