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Problem- Many computer chips are manufactured from silicon, which occurs in nature as silicon dioxide. When silicon dioxide is heated to melting, it reacts with solid carbon to form liquid silicon and carbon monoxide gas. In an industrial preparation of silicon, 155.8 kg of silicon dioxide reacts with 78.3 kg of carbon to produce 66.1 kg of silicon. Determine the limiting reactant, theoretical yield of silicon, and the percent yield of silicon for this reaction.
Give reasons or calculations to sustain your answer.
calcium in powdered milk is determined by ashing a 1.4983-g sample and then titrating thecalcium with edta solution
what are the oxidation states of manganese? i need the procedures and safety precautions taken when doing this
The variation of the atmospheric pressure p with altitude h is predicted by the barometric formula to be p = p0 e^(-h/H) where p0 is the pressure at sea level and H=RT/Mg with M the average molar mass of air and T the average temperature. Obtain t..
A reaction that is first order in A has a rate constant of 0.72/min If the initial concentration of A is 1.60 M, what is the concentration after one minute
Explain a 24.0 g sample of nitrogen gas reacts with an excess of hydrogen gas to give an actual yield of NH3. Define what is the percent yield for this reaction
3. 6 M HNO3 could not be found on the reagent shelf. Instead, 6 M HCL is added to the test solution. Instead, 6 M HCl is added to the test solution. What affect does this have on the test for sulfide ion. Explain
The atomic mass of Potassium 39 is 38.96371 AMU. Calculate the binding energy for a mass of this nuclide using 1.008665 AMU for the mass of the neutron, 1.007276 AMU for the mass of the proton, 0.00054858 AMU for the mass of the electron
Liquid sodium is being considered as an engine coolant. Explain how many grams of liquid sodium (minimum) are needed to absorb 6.00 MJ of energy in the form of heat if the temperature of the sodium isn't to increase by more than 10.0°C? Use CP = 3..
A Mg/Mg+2//2H+/H2 galvanic cell generates a current of 2.15x10-2 amperes for 205 minutes and, in the process, 29.9 mL of hydrogen at STP are collected. Calculate the values of Avogadro's number and the Faraday, assuming the charge on an electron i..
when a non-volatile solute dissolved in water the freezing point of the solution is lowered while its boiling point is
What is the concentration of magnesium nitrate in solution, and the concentration of nitrate ion in solution
when heated to 350 at 0.950 ammonium nitrate decomposes to produce nitrogen water and oxygen gaseshow many liters of
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