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Consider the following cell: Pt|H2(g, 0.670 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.15 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V, calculate the hydrogen ion concentration in the anode compartment.
A current of 3.78 A is passed through a Pb(NO3)2 solution for 1.40 hours. How much lead is plated out of the solution?A galvanic (voltaic) cell consists of an electrode composed of iron in a 1.0 M iron(II) ion solution and another electrode composed of copper in a 1.0 M copper(II) ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Standard reduction potentials can be found here.
Compute mass of Carbon dioxide formed from the decomposition of 59.0 grams of NaHCO 3 ?
Formic acid, CH2O2, can be decomposed to produce hydrogen. The Lewis structure for formic acid, CH2O2, is show below. The atoms are labeled A, B, C, D, E.
Using the equation E0cell = E0cathode - E0anode, and the reference value of E0 for Cu(II)/Cu(s) for the role that copper plays in this overall cell reaction, determine the value of the standard potential for the half-reaction Zn2+(aq) + 2e- -> Zn(..
A gas sample containing 1.64 mol at 25°C exerts a pressure of 389 torr. Some gas is added to the same container, and the temperature is increased to 50.°C.
vinegar is a 5.0% solution by weight of acetic acid (CH3CO2H)in water. given that the ph for acetic acid is 2.41, the ka=1.8X10-5 and assuming the density of vinegar to be 1.00g/cm3, what is the percent dissociation for acetic acid in vinegar?
A gas-filled balloon having a volume of 5.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth),
A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At0?C, the volume of the gas is 248 mL. To what temperature must the gas be heated to occupy a volume of 479mL.
This acidity has affected many lakes in northern Europe, the northern United States, and Canada, reducing fish populations and affecting other parts of the ecological network within the lakes and surrounding forests
Determine the molar mass of the compound if boiling point constant for CCl 4 =4.95 K · kg/mol.?
An important reaction in the formation of photochemical smog is the photodissociation of NO2: NO2 + hv >>> NO(g) + O(g) The maximum wavelength of light that can cause this reaction
A 4.40 g nugget of pure gold absorbed 295 J of heat. The initial temperature was 21.0°C. What was the final temperature?
"A student titrated a 10 mL sample of a saturated solution of borax. If the titration required 23.95 mL of 0.2556 M HCL to reach the endpoint, calculate the equilibrium molar concentration of B4O5(OH)(4 in the saturated solution"
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