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A sample of KCIO3 weighing 4.55g is strongly heated. All of the oxygen gas given off is collected over water in a flask. The atmospheric pressure is 29.06inches of mercury. The temperature is 23 degrees C. The gas constant is 0.0821 (L)(atm)(K)(mol). What is the volume of water that is expected to be displaced by the oxygen gas (in Liters)? The equation for the reaction is2KClO3->2KCl+3O2
data below show equilibrium constant for this reaction meassured at several different temperature. use data to find dHrxn and dHSrxn for reaction
15.0 mL of 0.400 M Hno3 Solution is titrated with 0.600 M KOH solution . Calculate pH of the solution when12.0 mL of KOH is added ?
Some of the cyclohexane solvent vaporized during the temperature versus time measurement. Will this loss of cyclohexane result in its freezing point being recorded as too high, too low, or unaffected.
It was found that 19.33 mL of an HI solution are needed to react completely with 320 mL of a LiOH solution that has a pH of 11.87. What is the molarity of the HI solution
Another 50.00 mL sample of the solution is treated with zinc, which reduces all the Fe^3+ to Fe^2+. The resulting solution is again titrated with 0.0280 M KnO4; this time 49 mL is required. What are the concentrations of Fe^2+ and Fe^3+ in the (or..
calculate the molarity of phosphoric acid in a solution that is 84% by mass phosphoric acid and has a dentisty of 1.87 g/m.
How many moles of each ion are in each solution? (a) 2 mol of potassium perchlorate dissolved in water K+ mol ClO4- mol (b) 255 g of magnesium acetate dissolved in water Mg2+ mol C2H3O2- mol
Describe how a specific gene can be identified from a gene library.
if 10.7 mL of .110 M NaOH is required to reach the equivalence point of a solution of citric acid, how many mL of NaOH are required to completely neutralized this solution
Suppose that you are going to collect H2 gas produced from the reaction of an acid with a metal such as zinc. This reaction gives off heat, so the tem perature of the solution will increase as the reaction proceeds.
consider a single d-electron in a homogeneous magnetic field.calculate the angles which the respective angular momentum
what is the equation for gypsum when it is heated below 220 degrees celsius and also when it is heated to red heat?
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