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If the absorbance of 0.365 M copper (II) chloride solution is 0.535, what is the Beer's Law extinction coeffeinct if quvette diameter is 1.00 cm?
Concentrated acetic acid is 17.5M; vinegar is 0.870M acetic acid. How much concentrated acetic acid in liters will you need to make 34 L of vinegar?
On size-exclusion chromatogram you have three peaks 2.9, 3.5, and 4.8 min. Column dead volume is 12mL as well as flow rate 4 ml/min. Are your separation conditions fit for size-exclusion requirements. Define why.
The test tube contained some water (besides the metal) that was subsequently added to the calorimeter. Considering a higher specific heat for water, will the temperature change in the calorimeter be higher, lower, or unaffected by this technique e..
write the acid ionization equation and ionization conexpression for the hydrogen carbonate ion
The ?G°' of the reaction is -3.430 kJ ·mol-1. Calculate the equilibrium constant for the reaction. (Assume a temperature of 25° C.) What is K'eq?
Which of the following combinations of reactants would lead to the occurrence of an oxidation-reduction reaction. (a) Ag (s) + HCl (aq) (b) Zn (s) + NiCl2 (aq) (c) Ca(NO3)2 (aq) + ZnCl2 (aq) (d) Ag (s) + Au (s) (e) Cu (s) + ZnCl2 (aq)
Define Protons can be accelerated to speeds near that of light in particle accelerators. Approximate the wavelength in (nm) of such a proton moving at 2.90x10^8 m/s(mass of proton=1.673x10^-27 kg)
Question- If 2.42X10^-1 grams of alloy produces 7.130X10^-3 mol of hydrogen gas, how many grams of zinc were in the original alloy
How much heat is needed to melt 22.4g of ice at zero degrees celcius to form liquid water at zero degress celcius?
Which of the following pairs of molecules is listed in order of decreasing net dipole moment (from more polar molecule to less polar molecule)
Problem- The Claisen condensation of which of these esters demands the use of (c6h5)3cna as the base (as opposed to sodium ethoxide) a) Ch3ch2co2c2h5 b) ch3co2c2h5 c) c6h5ch2co2c2h5 d) c6h5ch(ch3)co2c2h5 e) none of these
What amount of solid NaOH must be added to 1.0 L of a 0.12 M H2CO3 solution to produce a solution with {H} = 3.0×10-11 M? There is no significant volume change as the result of the addition of the solid.
Problem- 1) Calculate the change in pH when 4.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
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