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Identify the element oxidized and the element reduced, in this chemical equation:
H3AsO4 +H2S arrow H3AsO3 +S + H2O
Identify the oxidizing agent and the reducing agent
Justify why this is a redox reaction
Given the following equilibrium constant at 25 C, calculate the equilibrium constant for the unknown reaction below.
What is the range of acetaminophen dosages, expressed in mg accetaminophen/kg body weight, for chidren who weigh between 24 and 35 b?
A block of metal has a width of 3.2cm, a length of 17.1cm, and height of 3.3cm. Its mass is 1.5kg. Calculate the density of the metal.
The EPA limit for lead in the water supply is 15 parts per billion by mass. Calculate the number of lead ions present in 1.00kg of water that is at the EPA limit for lead.
A 1.00L solution containing 3.50x10^-4M Cu(NO3)2 2.20x10^-3M ethylenediamine(en). The kf for Cu(en)2+ is 1x10^20. What is the concentration of Cu2+(aq) in the solution
98 g of ethylene glycol (C2H6O2) are dissolved in 715 g of water. The freezing point constant (Kf) of water is 0.81°C·kg/mole. Determine the freezing point of the solution. (°C)
In an electrolysis cell similar to the one employed in this experiment, a student observed that his unknown metal anode lost 0.238 g while a total volume of 84.90 mL of H2 was being produced.
Calculate the value of heat of vaporization for this liquid Calculate the normal boiling point of this liquid.
why a bromine radical is more selective than a chlorine radical during abstraction of a hydrogen on a hydrocarbon?
Problem- Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n = 6 to n = 1.
Question- the conversion of 1 mol of pyruvate to 3 mol of CO2 via pyruvate dehydrogenase and the TCA cycle yields what amount of NADH, FADH2 and ATP
Rank the following atoms (from smallest to largest) based on which would have the largest second ionization energy?
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