Friday
August 22, 2014

Posts by byke


Total # Posts: 9

chem
In a laboratory experiment 259 ml of gas was collectedd over water at 24 degree C and 752 torr. Calculate the volume, that the dry gas occupy at STP?
November 24, 2012

chem
What will be the percent composition by weight of a solution made by dissolving 12.0 g of zinc nitrate, Zn(NO3)2, in 45.0 g of water? Zn(NO3)2_____________ H2O _____________
November 21, 2012

chem
What weight of potassium bromide, KBr, could be recovered by evaporating 650.0 g of 15.0 percent KBr solution to dryness?
November 21, 2012

chem
4HCl+O2=2Cl2+H2O Detremine the Kc expression for the reaction above by identifying what belongs in the numerator and what belongs int he denominator? pls do help trying to understand the concept but still confused.
November 19, 2012

chem
this question is also based on the reaction above. The concentration of I2(g) is increased to 1.5 M, disrupting equilibrium. Calculate the new ratio of products to reactants with this higher concentration of iodine. Assume that the reaction has not yet regained equilibrium. ...
November 14, 2012

chem
Given the concentrations, calculate the equilibrium constant for this reaction: I2(g) + Cl2(g)---> 2ICl(g) At equilibrium, the molar concentrations for reactants and products are found to be I2 = 0.50M, Cl2 = 0.60M, and ICl = 5.0M. What is the equilibrium constant (Kc) for ...
November 14, 2012

chem
thanks Dr.Bob222 you're the best
November 9, 2012

chem
Gaseous iodine pentafluoride, IF5, can be prepared by the reaction of solid iodine and gaseous fluorine: • I2 (s) + 5F2 (g) → 2IF5 (g). • A 5.00 L flask is filled with 10.0 g I2 and excess F2 with the reaction proceeds to completion completely consumed. After ...
November 9, 2012

chem
A solution contains 4.60 g KCl in 179 mL of solution. The density of the KCl solution is 1.11 g/mL What is the percent (m/m) for the potassium chloride solution? What is the molarity, M, for the potassium chloride solution? need help pls
November 8, 2012

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