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Both isopropyl alcohol, C3H8OH, and ethylene glycol, C2H6O2, are used as antifreeze. When equal masses of each are added to water, which, if either, will be more effective at preventing freezing?
Problem- If you were to use a 32.5% ethylenediamine solution and the density of the solution is 0.985 g/ml, what is the mass of the ethylenediamine in 3.4 ml of this solution
acid is dissolved in water to produce a 1.51 M solution. The pH of the resulting solution is 2.52. Calculate the Ka for the acid.
Tungsten crystallizes in a cubic unit cell with an esge length of 3.165 (Angrstroms)and with a tungsten atom on each of the corners of the unit cell and in the center of the unit cell(BCC structure).
Describe how a distillation works: how can you separate out things with it? which of the functional groups could you easily react via organic reactions to create different compounds
Determine how many grams of H2 gas kept in a 4.0L container at standard temperature and pressure (STP).
in your house elevation 950ft above sea level you have a barometer that registers inches of mercury. on an average day
ammonia is both a donor and an acceptor of hydrogen in hydrogen-bond formation. draw a diagram showing the hydrogen
consider one mole of a real gas constant pressure heat capacity cp of 32.52 jk expanded adiabatically and
Using the periodic table only, determine which members of the set have the shortest and longest bond lengths. N-H N-S N-O
Rose Bengal is a chromophore used in biological staining that has an absorption maximum at 559.1 nm and several other shorter wavelength absorption bands in the ultraviolet and visible regions of the spectrum when dissolved in ethanol. What is the..
how much of this chemical would have been measured? Express in terms of measured concentration C (mg/litre) of the filtered sample?
If 4.0 g of hydrogen and 10.0 g of oxygen are mixed according to the equation 2 H2 + O2 = 2 H2O, which is the limiting reagent
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