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Solid potassium chlorate decomposes upon heating to form solid potassium chloride and oxygen gas. A mixture of potassium chlorate and potassium chloride with a mass of 7.44 g is heated until all the potassium chlorate has decomposed. If 789mL of gas is collected over water is collected over water at .976 atmospheres and 30.0 C, explain what the percent potassium chlorate is in the original mixture? Vapor pressure of water is at 30.0 C = .023 atm.
What is the chlorine flow rate at the reactor pressure and temperature. (b) If the etching rate of silicon is 0.50 ?/min, and the wafer is 300 mm in diameter, how many moles of silicon are etched per hour
How many kJ of heat are needed to completely vaporize 1.30 moles of ? The heat of vaporization for water at the boiling point is 40.6 kJ/mole
a compound is 40.0c 6.70h and 53.3o by mass. assume that we have a 100.g sample of this compound. what are the
Exactly 313.5J of heat energy will raise the temperature of 10.0 g of a metal to 60.0 C. IF the specific heat of the metal is 0.896J/gC, what was the initial temperature of the Metal
The addition of a sodium flouride solution to one of lead nitrate results in a net ionic equation of PB 2+ (aq) + 2 Fe- (aq) yielding PbF2 (s). If 25.0 ml of 0.200 M NaF solution are mixed with 10.0 ml of 0.150 M Pb(NO3)2 solution, how many grams ..
What ions are present in a solution of HCl. Theoretically, which of these ions will affect the equilibrium of Co Cl2, and what will its effect be
In the presence of excess thiocyanate ion, SCN-, the following reaction is first order in chromium (III) ion, Cr3+; the rate constant is 2.0 x 10-6/s.
At what point in a Grignard Reaction is it no longer water sensitive? explain why the reaction can be exposed to water after this point
if the heat of combustion for a specific compound is -1180.0kjmol and its molar mass is 26.93gmol how many grams of
complete and balance the following equations and identify the oxidizing and reducing agents. recall that o atoms in
Calculate the integral of dqrev / T for each of the 4 steps in the Carnot cycle of, and sum them to prove that their sum equals zero
Given 6.4 mL of sulfuric acid (98%) calculate the number of mmols. (MW H2SO4: 98.08 g/mol, density: 1.840 g/mL)
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