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If a bottle of nail polish remover contains 181 mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788 g/mL.
Determine the molecular formula of the oxide of phosphorous when it is in its gaseous state.
What is the rate constant of a first-order reaction that takes 8.50 minutes for the reactant concentration to drop to half of its initial value?
For the reaction: 2N2O5(g) -> 4NO2(g) + O2(g) at the time when N2O5 is being consumed at a rate of -6.0 × 10-4 M/s, what is the rate at which O2 is being formed?
A 355 m-L container holds .146 g of Ne and an unknown amount of Ar at 35 degrees C and a total pressure of 626 mmHg. Calculate the moles of Ar present.
What is the order of a reaction that has the following time and concentration data? Time concentration
An aqueous solution that contains 285ppm of potassium nitrate (KNO3) is being used to feed plants in a garden. What volume of this solution is needed to prepare 1.7 L of a solution that is 97 ppm in KNO3?
A solution is prepared by adding 80.0 mL of 0.090 M HBr to 130.0 mL of 0.50 M HI. Calculate the concentrations of all species in this solution. HBr and HI are both considered strong acids.
Determine the chemical formulas for a covalent compound whose molecules contain 2 carbon atoms, 6 hydrogen atoms and an oxygen atom
Consider the reaction 2 Al2O3(s) ! 4 Al(s) + 3 O2(g) . H = +3339.6 kJ/mol What is H for the formation of one mole of Al2O3(s) from the elements.
When 24 mL of a 190 mL stock solution containing 1.8 M BaF2 is diluted to 78 mL, what is the concentration of Ba2+ in the new solution?
Which instrument can be used to determine the total calcium in a small blood sample.suggest a second method suitable for determine the free calcium ions on a similar sample of bood.
What minimum mass of succimer (C4H6O4S2) (in mg) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 25 micrograms/deciliter.
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