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The Fahrenheit temperature scale is defined so that ice melts at 32°F and water boils at 212°F.
(a) Derive the formulas for converting from Fahrenheit to Celsius and back.
(b) What is absolute zero on the Fahrenheit scale?
Determine the osmotic pressure of a solution that is 0.200 M in glucose and 0.100 M in sodium chloride at 37.0 degrees celsius. Assume no ion pairing.
Determine the molecular formula for the unknown if the molecular mass is 60.0 amu and the empirical formula is CH2O.
To do this, an excess of potassium sulfate was added. The calcium compound that precipitated was measured to be 25.5 milligrams. Determine the grams of the element calcium in one Liter of water.
Find the ?H for the reaction below, given the following reactions and subsequent ?H values: Zn(s) + 1/8S8(s) + 2O2(g) ? ZnSO4(s) Zn(s) + 1/8S8(s) ? ZnS(s)
Sketch the phase diagram of the system NH3/N2H4 given that the two substances do not form a compound with each other, that NH3 freezes at -78°C and N2H4 freezes at +2°C, and that a eutectic is formed when the mole fraction of NH is 0.07 and that t..
the laboratory is dissolved in 95% ethanol, diluted with water, and titrated to a phenolphthalein endpoint with 17.3 mL of 0.114 M NaOH. What is the percent purity of aspirin in the sample?
The solubility of magnesium phosphate at a given temperature is 0.936 g/100 mL. Calculate the Ksp at this temperature.
she observed the formation of a large volume of precipitant while trying to dissolve copper sulfate in the irrigation water from the well on her farm (which contains high levels of hydrogen sulfide). What explanation can you provide for this obser..
If a mixture of gases contained 78% nitrogen at a pressure of 984 torr and 22% carbon dioxide at 345 torr, what is the total pressure of the system
If I have 2.5g of Na2CO3, how much distilled water would I have to mix it with to obtain a 1.0M solution of sodium carbonate. If I have 2.5g of NaHCO3, how much distilled water would I have to mix it with to obtain a 1.0M solution of sodium carbonate..
For each of the following species, draw its Lewis-dot structure. If the species exhibits resonance, draw all the resonance hybrids. For each species, tell its shape, bond angles, hybridization of the central atom, and whether it is polar or nonpola..
Ozonolysis of a single enantiomer of R produces S, an acyclic, optically active ketoaldehyde of formula C6H10O2. Propose a structure for compounds Q,R, and S and show how your structures would react appropriately to give these results.
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