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A voltaic cell is made by placing an iron electrode in a compartment in which the Fe2+ concentration is 4.5 x 10^-5 M and by placing a Pt electrode in the other compartment, in which the H+ concentration is 3.50 M and P(subscript H2) = 1.00 atm. The Fe2+/Fe half-cell reduction potential is -0.44 V and the H+/H2 half-cell reduction potential is 0.00V. What is E for the cell at the concentrations given?
a. 0.28 Vb. 0.44 Vc. 0.58 Vd. 0.60 Ve. 0.10 V
Calculate the [H3O+] of a solution that has an [OH-] of 0.000 0060M. Is the solution acidic, basic, or neutral? (show answer in two decimal points).
If the charge calculated in the first part of this question is passed through a cell constructed of copper electrodes immersed in an acidic solution of copper sulfate (0.5 M CuSO4/0.1 M H2SO4), what mass of copper, in mg, will be deposited on the ..
"Air" bags for automobiles are inflated during a collision by the explosion of sodium azide, NaN3. The equation for the decomposition is 2NaN3(s) ? 2Na(s) + 3N2(g). What mass of sodium azide would be needed to inflate a 9.8-L bag to a pressure of 2...
A 322 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 635 mmHg. Calculate the moles of Ar present.
To identify a diatomic gas (X2), a researcher carried out the following experiement. She weighed an empty 4.2L bulb, then filled it with the gas at 1.30atm and 23.0C and weighted it again. The difference in mass was 6.3 g. Identify the gas
One liter of a gas has a pressure of 150.00 kPa at 25.0°C. If the pressure increases to 600.0 kPa and the temperature to 100.0°C, what would be the new volume of the gas?
what is the conclusion for determination of percent composition in hydrated compound
Lyzozyme(The protein) unfolds at a transition temperature of 75.5 degree celsius, the standard enthalpy of transition = 509 kJ/mol. Compute the entropy of unfolding of this protein at the temperature of twenty five degree celsius
How much energy is required to vaporize 158g of butane (C4H10) at its boiling point, if it has Hvap is 24.3kJ/mil
Calculate the amount of heat liberated (in kJ) from 375 g of mercury when it cools from 89.2°C to 15.7°C
A 0.1752g sample of silver nitrate was dissolved in 502.3g of distilled water. Calculate the weight molarity of silver in this solution.
Draw the expanded structural formula for the following condensed formula.
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