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What is the mole fraction of solute and the molal concentration for an aqueous solution that is 10.0% NaOH by mass?
a)mole fractions
b) molality
What is the wavelength (in nm) of the line in the spectrum of the hydrogen atom that arises from the transition of the electron from the orbital with n =3 to the orbital
Why E2 is favored over SN2, Sn2 requires a strong nucleophile while E2 requires a strong base. But relatively compared if you have a very strong base the E2 is preferred. Why is it so?
A series of lines in the spectrum of atomic hydrogen has a maximum wavelength of 7459.9 nm and then progresses to lower wavelengths. What is the wavelength of the 2nd line in the series in nm
An increase in the temperature of the reactants causes an increase in the rate of reaction. The best explanation for this behavior is that as the temperature increases
Silver chloride, often used in silver plating, contains 75.27% Ag. Calculate the mass of silver chloride required to plate 225 mg of pure silver.
Give the voltaic cell shorthand description for this reaction as a voltaic cell.Write anode and cathode under the correct portions of the shorthand description. Show the two half reactions and identify the correct reaction as oxidation or reductio..
The concentration of the primary waste in the pond is 35 mg/L. All of a sudden, the process changes and the concentration of the waste in the stream coming into the pond jumps to 250 mg/L. The pond is 500,000 L and the flow rate of the waste comin..
P2.36) A pellet of Zn of mass 31.2 g is dropped into a flask containing dilute H2SO4 at a pressure P = 1.00 bar and temperature T = 300. K. What is the reaction that occurs? Calculate w for the process. Ans. w = -1190 J
Write the balanced net ionic equation for the reaction between MnO4 - ion and Fe2+ ion in acid solution
the discharge pressure is 2 bars. Determine the area, enthalpy and specific volume at the entrance of the nozzle and the area, enthalpy
Place the following in order of increasing strength as reducing agents (all under standard conditions). (Use the appropriate symbol to separate substances in the list.) Cr3+, H2, Zn, Li, F -, Fe2+
This is a visualization question: If the number of mol of He in the mixture visualized is 1.53, calculate the total number of mol present in the mixture.
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