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A disinfectant solution is made by dissolving 4.50 g of hydrogen peroxide (H2O2) in 143.2 g of water. Calculate the mass percentage of hydrogen peroxide in the solution. What is the concentration of hydrogen peroxide in parts per million? What is the molarity?
The normal boiling point of water (delta H vap = 40.7 kJ/mol) is 100c. At the summit of mount Everest the boiling point of water is 70 c. Calculate the pressure in (torr) at the summit of Mount Ev.
The rate constant for the decomposition of dinitrogen pentoxide to form nitrogen dioxide and oxygen gas has the rate constant 1.7 x 10-3 s-1. This is a first order reaction. How long would it take for for the reaction to be 39.00% to complete
which of the following electron configurations represent an excited state?
What is the partial pressure of Br2 at equilibrium? What is the partial pressure of I2 at equilibrium? What is the partial pressure of IBr at equilibrium?
how to calculate chemicals ions and determain the calculations once it becomes a compound chemical
a solution made by dissolving 5.00 g of a protein in 175 ml of solution has an osmotic pressure of 42.0 torr at 10
In PLP catalyzed reactions, the bond broken in the substrate molecule must be perpendicular to the plane of the pyridinium ring. Describe why this arrangement stabilizes the carbanion
For the cell as written, what is the voltage after the addition of the following volume of NaI solution? The reduction potential for the saturated calomel electrode is E = 0.241 V. The standard reduction potential for the reaction
Which of the compounds contain chiral centers? (you may choose more than one answer)
Which one of the following processes involves a decrease in entropy. A) the decomposition of NH3(g) to H2(g) and N2(g B) The condensation of steam to liquid water C) The sublimation of CO2 from solid to gas D) The evaporation of ethanol E) The dis..
Calculate the volume of carbon dioxide gas at stp, produced when 651g of ammonia carbonate (NH4)2CO3 decomposes to produce ammonia gas (NH3) carbon dioxide and water vapor. Calculate the total volume of all gases produced under those conditions.
During a balloon ascension, wearing an oxygen mask, you measure the weight of a calibrated 5.00-kg mass and find that the value of the gravitational field strength at your location is 9.785 N/kg.
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