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Calculate the potential E for the following cell: Fe(s)| Fe(NO3)2 (0.050M || Cu(NO3)2 (0.020 M) | Cu(s) Cell reaction: Cu+2 + Fes ? Cus + Fe+2 Fe+2 + 2e- ? Fe(S) Eo = -0.44 V Cu+2 + 2e- ? Cu(s) Eo = 0.339V
what is the molality of a solution prepared by dissolving 10.0 grams of methylamine ch3nh2 in 50.0 ml of ethanol
If 200 mL of 0.300 M Cr(NO3)3(aq) is added to 100 mL of 4.0 × 10^-4 M NaF(aq) at 25 degrees celcius, will a CrF3 precipitate form? For CrF3 in water at 25°C, Ksp = 6.6 × 10^-11.
1.000 gram of lead sulfate, PbS04(fw 303.2) is mixed with 1.000g of potassium chromate,k2cr04(FW 194.2) in 100ml of water. The reaction produce the percipitate lead chromate quantitatively, pbcr04(FW 323.2).
What volume of hydrochloric acid solution of 0.25 M must be diluted to prepare 1.00 L of 0.040 M HCl and calculate Keq at this temperature for the given reaction 2 NOCl (g) W 2 NO (g) + Cl 2 (g) ( reaction is at equilibrium):
Consider a separation train consisting of two distillation columns which are designed to separate a three componentmixture of benzene, toluene, and xylene into three streams, each rich in one of the species asshown below.
a 7.00 solution by mass of an enzyme in water has an osmotic pressure of 20.0 torr at 291 k. calculate the molar mass
Iron has a reported average atomic mass of 55.85 amu. If iron has two isotopes, one of which has 29 neutrons and an isotopic abundance of 57.50%, what is the mass of the other isotope?
What is the pressure in the tank in atmpshere at a temp. of 33 degrees celcius after the CO2 (r) has been coverted to gas?
Is the reaction exothermic or endothermic? b) Calculate the heat produced when 10.0 g of AlCl3 forms. c) How many grams of Al are required to produce 1.00 kJ of energy?
What is the boiling point of a solution made by adding 6.79 g of magnesium chloride to 242.0 g of water?
Write a balanced chemical equation for the following reaction in a basic solution. ClO4-(aq) + Cu(s) ---> ClO3- (aq) + Cu(OH)2(s) 4 stars for whoever answers correctly
What volume of this gas must be burned to raise the temperature of 5.3 L of water by 5.0°C? Assume the gas is at 1.0 atm and 298 K.
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