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A solution of 14. g of a nonvolatile, nondissociating compound in 1.0 kg of benzene boils at 81.7 oC. Calculate the molecular mass of the unknown.
It is important that the flask used for molar mass determination is completly dry before adding volatile liquid unknown to it.why? what would happen to any droplets of wash-water remaining in the flask when the temperature of the flask is raised t..
Calculate the concentration of chloride ions when 100.0 mL of 0.205 M sodium chloride is mixed with 250.0 mL of 0.150 M calcium chloride.
Lead(II) sulfide reacts with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide?
how does nitrobenzoic acid form as a by-product during the nitration of methyl benzoate and how is it removed?
the mass of a sample of boron atoms is 5.60 g. how many boron atoms are in this
Consider the reaction CO(g)+ 3H2(g) CH4(g)+ H2O(g) with KC=4.1 x 105 at 773 K. The following amounts of substances are added to a 7.25 L reaction vessel: 0.103 moles CO, 0.205 moles hydrogen gas, 2.10 moles CH4 and 3.15 moles water vapor.
What volume of 0.2500 M cobalt(III) sulfate is required to react completely with a) 25.00 mL of 0.0315 M calcium hydroxide?
Deduce the structure of each compound from the given information. All unknowns in this problem have the molecular formula C8H12.
Oxygen gas at 34.5ºC expands from 34.5L to 45.7L against a constant pressure of 750mmHg. What is the work done in joules by the system
Determine how much heat is released when 15.7 kilo grams of ethane forms If 112 kilo joule is given off per mole of ethene reacting,?
Select all of the correct statements about reaction quotients and equilibrium constants from the choices below. A reaction quotient equals the equilibrium constant at equilibrium.
In the Haber-Bosch Process, nitrogen and hydrogen gas are reaceted under high temperature (500 C) and pressure (200 atm) to form ammonia gas (NH3) according to the equation
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