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Problem- A Cu/Cu2+ concentration cell has a voltage of 0.20V at 25 ?C. The concentration of Cu2+ in one of the half-cells is 1.6×10?3M
How would you prepare 1.000 L of a 1.000 mole L?1, pH 7.50 Tris-aka, tris(hydroxymethyl)aminomethane-buffer? You have pure Tris?HCl, {(HOCH2)3NH+,Cl?}
Not more than 5 H-bond donors (OH or NH) Not more than 10 H-bond acceptors (O or N) MW less than 500 g/mol What is the rational for the Rule of Five?
When 3 methyl 1 butane reacts with Hbr, two alkyl halides are formed: 2 bromo 3 methylbutane and 2 bromo 2 methyl butane. Propose a mechanism that explains the formation of these products.
Given that each neurotransmitter molecule that diffuses to the surface of an electrode releases two electrons. The average burst of charge measured at the electrode is 37fC. How many molecules are released in an average burst
how many liters of the HCN solution must be added to the NaCN to prepare the buffer. Now add 1.60grams of NaOH (solid) to the buffer. What will be the new pH.
What is the uncertainty of the position of the bacterium. The E. coli bacterial cell has a mass of = 0.500 (where a femtogram,fg , is 10^-15 g) and is swimming at a velocity of v = 9.00 um/s, with an uncertainty in the velocity of 8.00 %. E. coli b..
Find the volume of 1.00M KOH which must be added to 200mL of 1.00M glycolic acid (pKa=3.83) to produce a buffer solution
Predict the order of melting point, from low to high, for the following compounds, based on intermolecular forces: CaF2 H2O H2S CH2Cl2 N2
the ionization constant for benzoic acid is 6.5 x 10-5. find the hydrogen ion concentration at equilibrium when the
A first order reaction has a rate constant of 0.342 sec-^1 at 29.5 degrees C. If the activation energy is 69 kJ, calculate the temperature in degrees C at which the rate constant is 0.428 sec^-1.
In formation of the Grignard reagent Mg is converted to magnesium with a plus two oxidation state. Circle the reaction type magnesium is undergoing.
Utilize the data below to find out the rate law and the rate constant (k) for the subsequent reaction.
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