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5Fe2+ + MnO4- + 8H+ → 5Fe3+ + Mn2+ + 4H2ONumber of moles of electrons transferred in a two half cell reactions in the above overall reaction are:a. 8b. 7c. 6d. 5
Initial temperature of rod = 100 °C; mass of H2O in calorimeter =130 g; cH2O = 4.184 °C g . (Assume the calorimeter has negligible heat capacity).
An unknown gas is placed in a 1.500L bulb at a pressure of 356mm Hg and a temperature of 22.5C, and is found to weigh 0.9847g. What is the molecular mass of the gas
What is the molecular mass of a gas that diffuses through a porous membrane 1.26 times faster than Kr
Consider the titration of 30.0 ml of 0.030 M NH3 with 0.030 M HCl. Calculate the pH after the following volumes of titrant have been added.
In the titration, 34.67 mL of the sodium hydroxide solution was required to react with 0.1082 g KHP. Calculate the molarity of the sodium hydroxide.
Calculate the volume of all gases evolved by the complete oxidation of 0.390 of the amino acid alanine if the products are liquid water, nitrogen gas, and carbon dioxide gas; the total pressure is 1.01 ; and = 291.
water and placed in a polarimeter tube 20.0 cm long. The measured rotation was -2.17° at 25 °C. Calculate the specific rotation of the compound.
a balloon filled with helium gas has a volume of 500ml at a pressure of 1 atm. the balloon is released and reaches an
chromatogram for the presence of compounds other than isopentyl acetate. Explain the presence of any additional compounds
The book wants to know what the ground-state electron configuration should be for Ag+. I understand that if you have a positive ion, that it is losing an electron, so the ground state would reflect Palladium.
The temperature of the water rose t oa final temperature of 27.84 C. Neglecting heat loss to the room and the heat capacity of the beaker itself, what is the specific heat of the alloy?
What are the masses of CO and CO2 in the tank and what are the partial pressures of each of the three gases at 24C?
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