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Calculate the amount of isopentyl acetate that should be present in the reaction mixture at equilibrium based on 300 mmol of acetic acid and 150 mmol of isopentyl alcohol as starting quantities. Use equilibrium constant of 4.2 for this calculation. Moles can be used in place of concentration as volumes cancel out
A 0.140-mole quantity of M(NO3)2 is added to a liter of 1.030 M NaCN solution. What is the concentration of M2 ions at equilibrium?
The amino acid glycine is often used for biochemical buffers. The amino group of glycing can exist in a protonated form or as a free base (pKa 9.6).
An iron ore was found to contain 92.0% pyrite (fool's gold). Pyrite has the formula FeS2and is 46.5% iron. How many grams of iron are there in 65.8 grams of iron ore
Foruntantely, this toxin decomposes to a safe mixture of products by first-order kinetics with a rate of .27 days^-1. How long will it take for the water to be safe to drink
what is the ph of a solution prepared by mixing 50.0ml of 0.125M KOH and 50.0 ml of 0.125M HCl
Calculate the cell potential for the following reaction as written at 73C, given that [Cr2+]=.885M and [Fe2+]=.0100M.
Calculate the freezing and boiling point of the following solutions, assuming complete dissociation. a. 12.0 g FeCl3 in 162 g water
A form of the polypetide hormone angiotensin II has the amino acid composition ( ASP, ARG, ILE, MET, PHE, PRO, TYR, VAL). The following observations are made
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)?
what is the difference of the KBR specrtum in % transmittance and absorbance. and btw wavenumber and wavelength
You mix 50 ml of a weak monoprotic acid with 50 ml of NaOH solution in a coffee cup calorimeter. Both solutions and the calorimeter were initially at 22 C.
Calculate the pH in a solution prepared by dissolving 0.08 mol of solid NH4CL in 0.450 L of 0.35 M NH_3. Assume that there is no volume change.
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