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Xenon is a gas found in some automobile headlights. The density of xenon at room temperature and pressure is 5.3 g/L. What is the mass, in pounds, of 1.00 quart of xenon? [1 liter = 1.057 qt; 1 pound = 453.6 g]
Assume that each photon has sufficient energy to eject one electron. (Note currents are reported as positive values.)
Organic Chemistry and Genetics Problems - Write an equation for the complete hydrolysis of 2'-deoxythymidine-5'-monophosphate (dTMP) to its component parts.
Draw a mechanism for the electrophilic aromatic substitution of azulene with NO2 please show bond forming arrows.
Identify the limiting reagent for the given combination of reactants. Calculate how many grams of whatever substance will be in excess and how many grams of HF will be made.
How many moles of oxygen are needed to react with 5.0 moles of ammonia? In the above reaction, how many moles of water can be produced from 256 grams of oxygen?
In each of the following groups of substances, pick the one that has the given property. Explain your reasoning for each.
the electron configuration [Kr]4d10 5s2? How many unpaired electrons are there in the ground state of this ion?
A reaction takes place with a mass defect (lost mass) of 0.030kg. How much energy does the correspond to?
A soft drink contains 44 mg of sodium in 325 g of {rm H_2O}. What is the concentration of sodium in the soft drink in mass percent?
Determine the pH of a solution prepared by adding 0.0500 mole of solid ammonium chloride to 100 mL of a 0.150-molar solution of ammonia.
A 100g sample of water at 27oC is poured into a 76.2g sample of water at 89oC. What will be the final temperature.
What is the coefficient of the permanganate ion when the following equation is balanced?
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