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Explain if material properties tensile strength, conductivity, etc. are a function of crystal structure will the measured properties of various materials vary with crystal orientation? How can you explain this?
Determine the equilibrium total pressure in a closed reaction flask if 0.040 mol of NO and 0.020 mol of O2 were placed in the evacuated reaction flask and heated to 100°C, resulting in a 75%-yield of NO2.
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 ; 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
The Cd2 was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 23.4 mL of 0.0250 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution
If the pressure of a gas is 61.49 atm in a piston, what is the pressure, in atm, if the volume of the piston is increased by a factor of 4 at constant temperature
What mass of helium was placed in balloon. What altitude does the balloon reach
What is the concentration of the compound in a solution whose absorbance at 291 nm is A = 0.095 with a sample pathlength of 1.00 cm?
If a non-cyclic alkane shows a molecular ion peak at m/z 464, what is the chemical formula
Using the following data, calculate the V/T ratios and determine if Charles'Law is obeyed (verified). Volume hot dry air - 137.0 ml Volume water drawn into flask - 32.0 ml Temp. boiling water - 99.5 oC Temp.
In a chemical reaction two water-soluble ionic substances react to form an insoluble solid precipitate in a metathesis reaction. Would you expect DS to be positive, negative, or close to zero for this reaction
What concentration of the barium ion, Ba^2+, must be exceeded to precipitate BaF2 from a solution that is 1.00*10^-2 M in the fluoride ion, F^- ? Ksp for barium fluoride is 2.45×10^-5.
a sample of gas in a rigid container at 30 degrees celsius and 2.00 atm has its temperature increased to 40.00 degrees
Consider the crystalization of sulfanilamide from 95% ethyl alcohol. If impure sulfanilamide is dissolved in the minimum amount of 95% ethyl alcohol at 40 degrees celcius rather than 78 degrees celcius
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