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What is the term for the process of a vapor moving into(or out of) the solid phase without going thru the liquid phase?
Is this process done above or below the critical temperature? Is this process done above or below the triple point temperature?
a toothpaste contains 0.24 by mass sodium fluoride naf and 0.30 by mass of triclosan c12h7cl3o2. the mass of one tube
A sample of carbon monoxide occupies 6.15 at 298k snd 745 torr. Find its volume at -14 C AND 367 Torr
When a He atom absorbs a photon to form the excited configuration 1s^1 2s^1 (here called He*) a weak bond forms with another He to form the diatomic molecule HeHe*. Construct a molecular orbital description of the bonding in this species.
Compare the amount of cooling experienced by an individual who drinks 400mL of water (0 degrees C) with the amount of cooling experienced by an individual who sweats out 400 mL of water at 37 degrees Celsius. Assume all sweat evaporates.
If the test of such a breath sample yields a reading of 0.08%, what are the partial pressure and mole fraction of CH3CH2OH in the breath of the person who was tested? Assume the atmospheric pressure and temperature are 101 kPa and 21.0 oC, respect..
sodium will react with oxygen to form sodium oxide. use the formula below to determine how many grams of sodium oxide
A) Determine the [OH-] of a 0.16 M ammonia solution. B) Determine the pH of a 0.16 M ammonia solution. C) Determine the pOH of a 0.16 M ammonia solution.
Show reasonable function group test to distinguish between the following compounds and write down their characteristic observation. A) 2-butanol and t-butyl alcohol
The ratio of Fe^2+ to Fe^3+ concentrations in a solution is 1.0 x 10^3. ([Fe^2+]/[Fe^3+]) = 1.0 x 10^3. Calculate the potential of the solution relative to the saturated Ag/AgCl reference electrode, Eref = 0.204. E^0 Fe^3+/Fe^2+ = +0.771
During a period of discharge of a lead-acid battery, 402g of Pb from the anode is converted into PbSO4.
Draw structural formulas (full or condensed) and give the molecular formulas for the following compounds. a)2-methylpropane b)2,4-dimethylpentane c)2,2-dimethylpentane
How much work is done in kilojoules as a result of the reaction shown. 2.5 atm with a volume of 2L --> 2.5 atm with a volume of 3L
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