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Lithium hyydroxide is used in the space program to removecarbon dioxide (from respiration) is spacecraft. Specifically,lithium hydroxide. LiOH, reacts with carbon dioxide, CO2 to formlithium carbona
The standard enthalpy ofvaporization for C2Br2F4 is 104.64 J/g at its normal boiling pointof 47.26°C. Calculate the standard entropy of vaporization (ΔS°vap)of C2Br2F4(l).
Let's think about what electronic structure means. If Ihave the electronic structure of an atom, what information do Iknow about the electrons in the atom? (there are two different pieces informatio
Rotational absorption lines from 1H35Cl gaswere found at the following wavenumbers: 83.32, 104.13,124.73, 145.37, 165.89, 186.23, 206.60, 226.86cm-1.
A sample of air contains 72.75%nitrogen, 26.45% oxygen, 0.05% carbon dioxide, and 0.75% argon, byvolume. How many molecules of each gas are present in 1.00 L of thesample at 25°C and 1.00 atm?
Will the reported molar concentration of the sodium hydroxide solution be too high, too low, or unaffected because of the moistness of the potassium hydrogen phthalate?
Without doing detailed calculations, sketch the curve for thetitration of 30.0 mL of 0.10 M NaOH with 0.10 M HCl. Indicate the approximate pH at the beginning of the titration and at the equivalence
Benzil and diphenyl aceton undergoes a double aldolcondensation to form tetraphenylcyclopentadienone. At what temperature will aldol reaction reflux?
Assume that you wanted to prepare a small volume of purehydrogen by reaction of lithium metal with water. How many grams of lithium would you need to prepare 450 mLof H2 the density of hydrogen is 0
How many grams of O2 gas are contained in a cylinder having a volume of 35 Liters, a pressure of 2055 mmHg, and a temperature of 15 degrees c?
LDA is added to a solution containing ethyl butanoate. After thisreaction has gone to completion, propanal is added. Once thisreaction is completed an acid workup is performed.
A 160.0g sample of metal at 75 degrees C is added to 150.0g H20 at 15 degrees C. The temp. of the H2O rises to 19.5 degrees C. Assuming no heat is lost to the surroundings or calorimeter.
Concentrated hydrochloric acid is a stron acid with aconcentration of approximately 12 M. what is the pH of concentrated hydrochloric acid?
A 13 mL sample of a solution of AlBr3 was diluted with water to 25mL. A 15 mL sample of the dilute solution was found to contain0.045 moles of Br-. What was the concentration of AlBr3 in the origin
A0.032-M aqueous sample of species "X" was analyzed by atomic absorption spectroscopy at 525 nm and in a 1.00-cm celland yielded a %T value of 32.57% .
How many grams of hydrogen gas were released by the reaction of 1.00g of aluminum with excess potassium hydroxide solution?
Calculate the vapor pressure lowering of water when 5.67 g of glucose, C6H12O6, is dissolved in 25.2 g of water at 25 ºC. The vapor pressure of water at 25º C is 23.8 mmHg.
An amount of sucrose (a nonelectrolyte, 342.30 g/mol) is dissolvedin 233.0 grams of water that increases the boiling point by 1.90oC. How many grams of the sucrose were added to the purewater?
Compute the boiling point of 3.0L of water that has 1.5 grams of lithium fluoride dissolved in it. Compute the freezing point depression for the same solution. The enthalpy of vaporization of wate
A group of students brought a six pack of beer to thebeach in Fortlauderdale, FL. The six pack is placed in a coolerfilled with 1000g of ice and 4000g of water ( T=0°C ). When will the beer achi
Many cigarette lighters contain liquid butane,C4H10(l). Using standard enthalpies of formation, calculate the quantity of heat produced when 5.00g of butane is completely combusted in air under stan
In very hot, humid climates, such as those in tropical jungles,surface water is usually not safe to drink. A military campaign insuch a place.
A chef at a restaurant ( elevation= 9500ft ;Patm=535 mm Hg) asks you how long she must boil an eggto satisfy a customer (from sea level) orders a "3-minutes" boiledegg? what is your answer?
When we perform the silver nitrate test.which five anions will combine with silver ion to form in soluble precipitates? how will recognize this when it happens?
Magnesium sulfate, MgSO4, is added to 469 mL of 0.040 Msodium hydroxide, NaOH, until a precipitate just forms. How many grams of magnesium sulfate were added?