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How many grams of ethylene glycol (C2H6O2) must be added to 1.15 kg of water to produce a solution that freezes at -4.82 degrees celsius?
how many grams of carbon dioxide are produced when 2.50g of sodium hydrogen carbnate reacts with excess citric acid according to the equation: 3NaHCO3 + H3C6H5O7 -> Na3C6H5O7 + 3CO2 + 3H2O.
Would you expect a Diels-Alder reaction between maleic anhydride and naphthalene to require more or less harsh conditions
A radioactive element has a half-life of 2.2 hours. How many hours will it take for the number of atoms present to decay to one-sixteenth of the initial value? Show your calculations
Knowing the pH and the value of [H4SiO4(aq)], what is the value of [H3SiO4-(aq)] when the pH=7.0? and when pH=10.0?
Write an equation for this reaction? which species acts as the nucleophile? Which species acts as the electrophile?
Why does bromine add faster to a disubstituted double bond than a monosubstituted double bond to produce dibromides
Assuming complete dissociation and ideal behavior, what would be the boiling point of an aqueous solution of MgCl2 that is 8.0% MgCl2 by mass? For H2O
what is the molarity of a solution prepared by dissolving 15.07 g of hcl in enough water to make 920.72 ml of solution?
Calculate an approximate heat of reaction for the combustion of one mole of methane gas (CH4) to form gaseous H2O and CO2. What Volume (in L) of methane is needed to produce 2471 kJ of heat for methane gas at 35 Degrees C and 7.17 atm pressure
A rate constant obeys the Arrehnius equation, the factor A being 2.2 * 10^13 s-1 and the activation energy being 150 kj mol -1. What is the rate constant at 227 C, in s-1
The half-life of the radioactive isotope bismuth-210 is 5.01 days. How many days will it take for the mass of a sample of bismuth-210 to decay from 56.4 milligrams to 14.1 milligrams
The decomposition of an aldehyde solution in carbon tetrachloride is a first order reaction with a rate constant of 1.20 x 10-3 min-1. If we start with [aldehyde] = 0.0500 molar, what will the concentration be 150 minutes later
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