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Question- The discussion section states that one of the reasons that back titration is preferred to direct titration is becuase of the limited solubility of carbonates in water. Why does this make direct titration difficult and why does back titration tend to circumvent this difficulty?
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The pH difference diagonally the membrane of a glass electrode is 5.49. Explain how much voltage is generated by the pH gradient at: 25°C and 37°C
Predict the electron configuration of an octahedral d4 complex with (a) strong field ligands and (b) weak field ligands, and state the number of unpaired electrons in each case.
As a result, the pressure inside the vessel drops to 30.64 atm at 25 C. Calculate the final percent by mass of ozone in the vessel.
In metallic magnesium explain what fraction of the 'molecular orbits' contained in the valence band plus the conduction band is occupied by electrons? Explain
Question- The common isotopes of carbon are 12C and 13C. The average mass of carbon is 12.01115 amu. What is the abundance of the 13C isotope
Which substance would you expect to have a higher melting temperature, ethane, made with 2 carbon atoms (two methanes stuck together), or octane with carbon atoms (eight methanes stuck together)?
Calculate the molar heat of neutralization (in kJ mol-1). The heat capacity of the calorimeter is 10 cal/g·0C.
You need to dilute 30.0 mL of a 2.50 M NaCl solution to make a .500 M NaCl solution. what is the volume of diluted solution after you add water
A weather balloon has a maximum volume of 7.50 × 103 L. The balloon contains 195 L of helium gas at a pressure of 0.993 atm. What will be the pressure when the balloon is at maximum volume?
During the extraction of trimyristin from nutmeg, two students were given different samples of nutmeg. They noticed that one sample was very fragrant with the characteristic odor of nutmeg, while the other one looked old and was not very fragrant ..
Outline the phase diagram of the system nh3/n2h4 given that the two substances don't form a compound with each other, that nh3 freezes at -78 C and n2h4 freezes at +2 C and that a eutectic is formed while the mole fraction of n2h4 is 0.07 and that..
The jewlers' mass unit for dimond is the carat. By, definition, 1 carat equals exactly 200 mg. What is the volume of a 1.00 carat diamond
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