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A voltaic cell is constructed from a standard Mn2+|Mn half cell (Eored = -1.180V) and a standard Hg2+|Hg half cell (Eored = 0.855V).
The anode reaction is:The cathode reaction is:The spontaneous cell reaction is:The cell voltage is: (V)
Calculate the amount of heat required to raise the temperature of 1500g of water from 25C to 63C
A 248 gas sample has a mass of 0.433 g at a pressure of 745 mm Hg and a temperature of 28 C. What is the molar mass of the gas?
A total of 2.00 moles of a compound is allowed to react in a foam coffee cup that contains 127g of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 celcius .
The equilibrium point is reached at 120 seconds. After 200 seconds has passed, what is the concentration of sulfates in the drinking water sample.
mercury barometer with an inner diameter of 10.00 mm? Recall that the area of a circle is A = ? r2 and that 1 N = 1 kg m/s2.
distinguish between an organic molecule that is dextrorotary and one that is levorotary.
Select a phospholipid and use it to illustrate the action of phospholipase A2 and discuss the structural ramifications of this reaction on the membrane.
50ml of 12M HCl are mixed, a ppt of AgCl forms Assume the reaction below goes to completion, and find the value of [Cl] in the mixture: Ag(aq) + Cl(aq)--> AgCl(s)
What is the final temperature of the nickel and water? The specific heat is 4.18 J/g * C for water and is 0.444 J/g * C for nickel.
The Planck distribution gives the energy in the wavelength range dA at the wavelength A. Calculate the energy density in the range 650 nm to 655 nm inside a cavity of volume
A mixture of sand and iron pieces weighs 53.29 g. Using a magnet, the iron is removed and weighs 15.63 g. What is the percent composition of sand in the mixture?
How many kilograms of magnesium can be obtained from 5.96 km^3 of seawater if the initial Mg^2+ concentration is .19% by mass. Remember the density of seawater is 1.04 g/ml
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