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why is it dangerous to heat a liquid in a distilling apparatus that is closed tightly at every joint and has no vent to the atmosphere?
if 625g of fe3o4 is produced in the reaction, how many molecules of hydrogen are produced at the same time?
Make a new solution with a total volume of 10.0 mL and How many moles are contained in 500.0 mL of solution
One Way of purifying gaseous H2 is to pass it under high pressure through the holes of a metal's crystal structure. Palladium, which adopts a cubic closest packed structure
How much heat is evolved when 1259 g of water condenses to a liquid at 100°C? ΔHcond = -40.7 kJ/mol.
How many grams of NO(g) can be formed from 3.0 moles of NH3(g) if there is sufficient O2(g) to use all of the ammonia?
A 2.50 g sample of an unknown gas occupies 885 mL at 697 mm Hg and 40 C. What is the molar mass of the unknown gas
Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.500 M phosphoric acid solution.
A very crude model of the buckminsterfullerene molecule (C60) is to treat it as a collection of electrons in a cube with sides of length equal to the mean diameter of the molecule (0.7nm)
Determine the mass of H 2 O is formed if oxygen of 10.0L react completely in the given equation?
The healthcare provider recommends that she take the Benedict's test. Assume that the glucose levels of the patient are high. State the composition and the properties of the ketohexose derived from fruit jam.
Assuming a 70.% yield in the overall reaction, what mass of limestone is required to remove all the sulfur dioxide formed by the combustion of 9.9 *10^4 kg of coal that is 0.33 mass % sulfur?
Explain why alcohols such as ethanol and propanol are soluble in water, butanol is moderately soluble and pentanol is slightly soluble
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