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Write the balanced equation and determine the standard cell potential for each of the following cell notatio
Fe(s) |Fe^2+ (aq) | |NO3^- (aq) | NO (g) | Pt(s)
If it takes 526 J of energy to warm 7.40 grams of water by 17 degrees Celsius, how much energy would be needed to warm 7.40 grams of water by 55 degrees Celsius?
The Rb-Sr data given below are for whole-rock samples from amphibolite metamorphic facies of theLewisian gneiss complex in Scotland (Moorbath et al., 1975), and the Sm-Nd data are for whole-rocksamples from granulite metamorphic facies of the same..
Calculate the molar mass of a Nonelectrolyte that lowers the freezing point of 25.00 g of water to -3.9 degrees C when 4.27g of the substance is dissolved in the water.
Wavelength of light required to break C-C, C-Cl, O=O bonds - Calculate the frequency and wavelength of the least energetic photon that can break an average C-C bond. In what region of the electromagnetic spectrum is this radiation?
HIn H+ + In- The following absorbance data were obtained for a 5.00 x 10-4 M solution of HIn in 0.1 M NaOH and 0.1 HCl. Measurements were made at a wavelength of 485 nm and 625 nm with 1.00 cm cell.
What is the molality of a 25.5% aqueous solution of phosphoric acid, H3PO4 (M = 97.99 g/mol)
Calculate the calorimeter constant. The enthalpy of combustion of antracene is -7061 kJ/mol.
Octane (C8H18(l)) is a key component of gasoline. How much energy (enthalpy) in kJ is released from the combustion of one mole of octane? How much energy is released from the combustion of one gram of octane?
A clinic took temperature readings of 250 flu patients over a weekend and discovered the temperature distribution to be Gaussian, with a mean of 101.30°F and a standard deviation of 0.8490
the actual yield of a reactant is 22 g and the theoreticaal yield is 25 g calculate the percentage yield
Using the data in your textbook, calculate the concentrations of the molecular and ionic species and the pH in aqueous solution that has a formal composition of 0.0700 M KH2PO4 + 0.5500 M K2HPO4.
a balloon is filled with helium. its volume is 5.9 at 26degrees celcius. what will be its volume at 278 degrees celcius?
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