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What is the minimum mass of ethylene glycol (ethane-1,2-diol, C2H6O2) that must be dissolved in 14.5 kg of water to prevent the solution from freezing at -22.0° C? (Assume ideal behaviour.)
calculate the vapor pressure of an aqueous solution at 30 degrees c made from 100 g of sucrose c12h22o11 and 100g of
given that mercury has a delta hvap of 59.11 kjmol and its normal boiling point is 356.7 degrees c calculate the vapor
Determine the molar mass of the acid and given that the pH at the half way point to the equivalence is 3.86. Calculate the Ka of the unknown acid.
compute the density in gcm3 of piece metal that has a mass of 0.400kg and a volume of 73cm3. how to work this problem
the molar heat of fusion of aluminum metal is 10.79 kjmol whereas its heat of vaporization is 293.4 kjmol.what quantity
What are the products of a single displacement reaction involving hydrochloric acid and magnesium
Creatine is a by-product of muscle metabolism, and creatinine levels in the body are known to be a fairly realiable indicator of kidney function.
Calculate the amount of work done against an atmospheric pressure of 1.00 atm when 500.0 g of zinc dissolves in excess acid at 30.0°C. Zn(s) + 2H+(aq) → Zn2+(aq) + H2(g)
Explain why is it important to add the solution of bromine quickly as well as in one portion to the test tube containing the aromatic substrate
benzoic acid is a weak acid that has antimicrobial properties. its sodium salt sodium benzoate is a preservative found
Treatment of an aldehyde or ketones with hydrazine, H2NNH2, yields an azine, R2C=N-N=CR2. Propose a mechanism
How many moles of carbon dioxide are produced for every mole of tdi that is hydrolyzed
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