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starting with 38.52mL of a .2000 M H3PO4, calculate the volume of .7000 M NaOH required to convert all of the phosphoric acid to sodium dihydrogen phosphate. What is the concentration of the sodium dihydrogen phosphate in the final solution?
The antifreeze in a car was a 50% by weight solution of ethylene glycol C2H6O2 in water. Calculate the boiling point and freezing point of this solution. (for H2O: Kb= 0.52 C/m... Kf=1.86 C/m
Calculate the minimum mass of hexane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.
Compute the solubility of silver sulfite, Ag 2 SO 3 in units of grams per liter and complete and balance these given redox equations by the half reactions method (the oxidation reaction and the reduction reaction)
Cyclopropane has significantly less angle strain than cyclopropane, yet is only slightly lower in energy. How can this be true? How does this information relate to the fact that cyclobutane is not a planar molecule
how many grams of 1,4-butanediamine and adipoyl dichloride are required to synthesis 5g of Nylom 4-6 (MW of repeat unit 198.26 g/mol)? show calculations
Name the anion obtained by removing one oxygen atom from the perbromate ion, BrO4 -
What is the function of the sodium thiosulfate in studying the kinetics of the hydrogen peroxide-iodide reaction?
Given a 4.50 L container of helium at 298 K and 1.00 atm, and a 3.00 L container of argon at 298 K and 1.00 atm, write a brief statement to explain whether or not atoms of He and Ar in their respective containers have the same average speed.
The atomic weight of a newly discovered el-ement is 10.600 amu. It has two naturally occuring isotopes. One has a mass of 10.000 gms and a natural abundance of 70.000%. What is the isotopic mass of the other isotope?
the electron-state H atom absorbs a photon of wavelength 93.78 nm. To what energy level does the
Consider the titration of 50.0 mL of 0.217 M hydrazoic acid (HN3, ka=2.6x10^-5) with 0.183 M NaOH. Calculate the pH of the solution after the addition of 29.7 mL of NaOH solution
A star is estimated to have a mass of 1 multiplied by 1036 kg. Assuming it to be a sphere of average radius 6.5 multiplied by 105 km, calculate the average density of the star in units of grams per cubic centimeter.
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