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Write the mass balance equation and charge balance equation for a solution that is 0.1 M FeCl3 and 0.2 M FeCl2
The energy of a photon is 9.61 x 10 ^ -20 J . What is its wavelenght( in nanometers)? Enter your answer in scientific notation
Fractional distillation was applied to separate a mixture of water and methanol. The same method was also applied to separate a mixture of carbon tetrachloride and toluene, using the same fractionating apparatus
Two samples of sodium chloride were decomposed into their constituent elements. One sample produced 2.84 g of sodium and 4.37 g of chlorine
The repeating galacturonic acid monomers are connected by a-(1->4) bonds. Below draw 4 repeating monomer units making up a pectin molecule
What wavelength, of light would be necessary to ionize an electron at the n = 3 state in a He+ cation
which produce no significant response to interfering ions. It is then used to measure the pH of 0.0100 M NaOH in 0.50 M NaCl at 25 degrees C. What is the observed pH under these conditions if the true pH is 1.13?
A 0.10-mol sample of a diprotic acid, H2A, is dissolved in 250 mL of water. The Ka1 of this acid is 1.0 x 10-5 and Ka2 is 1.0 x 10-10. Calculate the concentration of A2- in this solution.
if 6.795 g of alum was produced using the method in this experiment, how many grams of hydrogen gas could theoretically have been produced
The normal sublimation point of solid acetylene is -84 C. Figure out the answers to the questions below and then pick the correct statement from the multiple choices(i) Is the sublimation of solid acetylene an endothermic or an exothermic process
Ammonium hydrogen sulfide decomposes on heating NH4HS(s) NH3(g) + H2S(g) If Kp for this reaction is 0.11 at 298 kelvins (with pressures in atmospheres)
calculate the molality (m) of the following solutions: a)65.0 g of glucose, C6H12)6, a nonelectrolyte, added to .112 kg of water. b).320 mol of sucrose, C12H22O11, a nonelectrolyte, dissolved in 1.50 kg of water
non-electrolyte, X was dissolved in 100 g of Benzene, the vapor pressure of the solvent decreased from 100 torr to 93.8 torr at 299 K. Calculate the molar mass of the solute, X.
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