How many grams of oxygen gas should be given off
Potassium chlorate,decomposed when heated to produce potassium chloried and oxygen gas. If 2.50 grams od KCLO3 were heated in test tube, how many grams of oxygen gas should be given off?
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A 11.7 mL sample of a HCl solution has a pH of 2.000. What volume of water must be added to change the pH to 4.000?
Benzoyl chloride, C6H5COCl, reacts with water to form benzoic acid, C6H5COOH, and hydrochloric acid. This first-order reaction is 25% complete after 26 s. How much longer would one have to wait in order to obtain 99% conversion of benzoyl chloride
Calculate the molarity and mole fraction of a 1.43 m solution of acetone (CH3COCH3) dissolved in ethanol (C2H5OH). (Density of acetone = 0.788 g/cm3; density of ethanol = 0.789 g/cm3.) Assume that the final volume equals the sum of the volumes of
The volume of a gas bag was found to be 840 mL at a temperature of 25 degrees C and a pressure of 734 torr. What would be its volume at STP?
How much limestone must be decomposed by heating to produce 150.0 grams of lime, CaO?assuming that the limestone contains 85.0% pure CaCO3.
A zero-order reaction has a constant rate of 2.90×10-4 M/rm s. If after 65.0 seconds the concentration has dropped to 9.00×10-2 M, what was the initial concentration?
Iron has a density of 7.874. g/cm3. What is the mass of a rectangular block of iron with dimensions of 3.000 cm by 4.000 cm by 5.000 cm?
If 56.0 g of mercury(II) oxide is heated and 26.0 % decomposes, what is the pressure of oxygen gas in a 621 mL container at 25oC?
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