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Suppose you are given 150 mg of an unknown mixture that contains three compounds, and you are told to separate the compounds using column chromatography, using alumina as a stationary phase. How would you decide what solvent or solvent system to use?
Give TWO possible reactions you could use in each case and write an equation for each reaction.
What was the ?t for the metal c) how much heat flowed into the water d) taking the specific heat of water to be 4.18J/g°C, calculate the specific heat of the metal e) what is the approximate molar mass of the metal
Draw the structures of the Hg-containing compound(s) and the final alcohol product(s) formed in the following reaction sequence, omitting, by products. If applicable, draw hydrogen at a chirality center and indicate stereochemistry via wedge-and-d..
tap water with a Cl- ion concentration of 1*10^-5 mol/L? Ksp=1.77*10^-10
In terms of uncertainty, why is an endpoint volume of 9 mL less preferred than an endpoint volume of 35 mL? In terms of uncertainty, why is an endpoint volume of 55 mL less preferred than a volume of 35 mL?
Suppose an additional gaseous component, e.g. helium, is pumped into the system, keeping the volume of the container fixed, until the final pressure is 100 atm. Assume that the helium does not dissolve in water but remains pure. Assume water is in..
A quanity of oxygen gas was collected over water at 30 c in a 475 mL container. The pressure in the container was measured to be 105 kPa. How many grams of oxygen gas were collected?
Assuming the bag does not break, what will be its volume at the top of a mountain where the pressure is 436 mmHg and the temperature is 9.00 C?
Draw all resonance structures for anisole to show why the methoxy group directs incoming electrophiles
Balance the equation in acidic solution and determine how much of a 0.850 M K2Cr2O7 solution is required to completely dissolve 5.25 g Cu
how many rotational levels are there, approximately, between v=0 and v=1 vibrational levels, which are 559.71 cm-1 apart in energy? B=0.2441 cm-1.
Use the octet rule to predict the formula of the simplest compound formed from hydrogen and silicon.
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