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If the available valence electrons for a molecule or polyatomic ion does not complete all of the octets in an electron-dot formula, what should you do
If a 1000 kilogram sample of rock is 0.021% gold by mass, how much zinc is needed to react with the gold extracted from the rock? Assume that the reaction is 100% efficient.
Enough of a monoprotic acid is dissolved in water to produce a 0.0104 M solution. The pH of the resulting solution is 2.46.
Present-day plant life has a carbon-14 decay rate of 16 disintegrations per minute (dpm) per gram of carbon. If a contemporary wooden chair were somehow preserved for the next 3,900 years, what 14C decay rate should be expected from the wood used ..
what is the chemical calculation to figure out the following: calculate the number of moles of each ion present in the following solution: 10.2 mL of 0.451 M AlCl3 solution.
If a few drops of water on the outside of the hot water syringe used to dispense the 5.00 mL sample into the calorimeter well for the Kcal determination fell into the well
Two chromatographic columns (GC) are being compared for use in an analysis. One is a 50 cm long packed column that is 5 mm in inside diameter (ID), with a stationary phase that is 1um thick on the support packing and has a total of 25,000 theoreti..
What must the concentration be, of each member of the buffering acid/base pair, if the reaction is expected to release 0.1 millimoles of H+?
How much heat is absorbed by 100 mL of a dilute solution of NH4NO3 as it changes its temperature from 22.4 degrees C
Minimal energy cost of H2S conversion to hydrogen and sulfur in gliding-arc is 1.6 eV/molec
Which conformation of bromo-cyclohexane undergoes reaction with potassium t-butoxide and use a Newman diagram to explain
capacity contains fluorine gas at a pressure of 160. lb/in^2 at 26° C. What volume will the gas occupe at STP? (1 atm = 14.7 lm/in^2, F = 19.00 g/mol)
When optically active propylene oxide is used, the 1,2-diol obtained from the acid hydrolysis has a optical rotation opposite from the Alkaline hydrolysis. Write the mechanism of each hydrolysis that is likely to explain these facts.
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