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The oxygen produced was collected over water. a sample of kclo3 produced 705 ml of oxygen saturated with water vapor at 20.0C where the vapor pressure of water is 17.54 mmhg. the total gas pressure was 1.104 atm. what is the mass of kclo3 decomposed? 2KClO3 (s) = 2KCl (s) + 3O2 (g)
a 0.1946 g piece of magnesium metal is burned in a constant volume calorimeter that has a heat capacity of 1349 jdegc.
A spray contains 0.42g of antiseptic phenol is dissolved in 27.0mL of solution. What is the weight/volume percent concentration of phenol?
Problem- The nonpolar compound, 2-bromo-2-chloro-1,1,1,tri-fluoroethane (Fluothane) is a nonpolar anesthetic, therefore it is soluble in the nonpolar nerve membranes.
determine whether a solid forms when solutions containing the following salts are mixed. if so write the net ionic equation for the reaction. a)Na3PO4(aq) and AgNO3(aq). b)K2SO4(aq) and Na2CO3(aq). c)Pb(NO3)2(aq) and Na2CO3(aq). d)BaCl2(aq) and KO..
A Cu2+ solution of unknown concentration had an absorbance of 0.45. What is the molar concentration of Cu2+ in the unknown solution?
Name the stereoisomers formed by oxidation of (S)-4-methylcyclohexene with osmium tetroxide.
The side rection most often encountered in diels-alder syntheses is dimerization, in which the diene also acts as a dienophile. For example, butadiene can react with itself to yield 4-vinylcyclohexene . Draw the structures of four possible Diels-a..
What is the final temperature once thermal equilibrium has been established. How much ice remains once thermal equilibrium is established
Calculate the enthalpy per mole of sodium hydroxide for the dissolution process. Assume the specific heat of the solution is the same as that for pure water.
given the following balanced chemical equation answer the following questions 3cacl2nbspaq 2
A 0.54 M solution of a compound in water has a density of 1.340 g/mL at 20°C. What is the molality of this solution. Assume that the mass of the solution is the mass of the solvent
A sample of carbon dioxide gas occupies 617 mL at 0.812 atm and 11?C. What will the pressure be at a volume of 717 mL and a temperature of 16?C?Answer in units of atm
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