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The disinfectant hydrogen peroxide (H2O2) decomposes to form water and oxygen gas.How much O2 will result from the decomposition of 3.21 mol of hydrogen peroxide?Answer in units of mol.
What volume, in liters, of O2 at 35°C and 1.19 atm can be produced from the decomposition of 10.0 g KNO3? 2 KNO3(s) → 2 KNO2(s) + O2(g)
Find the pH solution & Hydronium ion concentration and What is the pH of a solution of 0.17 M acid and 0.81 M of its conjugate base if the pKa = 8.62?
Determine how much heat (in kJ) is needed to warm 12.0g of ice, that is initially at -10.0 ° C, to steam at 114.0 ° C? The heat capacity of ice is 2.09 J/g⋅ ° C and that of steam is 2.01 J/g⋅ ° C.
A 52.0-g sample of an alloy at 93.0°C is placed into 379 g of water at 22.0°C in an insulated coffee cup. Assume that no heat is absorbed by the cup.
When a 2.41x102 g strip of zinc is dropped into a large beaker containing excess hydrochloric acid, how many grams of gas are formed.
How many milliliters of 0.150M sulfuric acid are required to react with 8.20g of sodium bicarbonate.
The average pH of precipitation in rural areas is 5.80. Assuming that the pH is controlled by the carbonate system, i.e., no anthropogenic acid gases are present in the atmosphere.
Calculate the heat of neutralization when it is given that : heat capacity of the calorimeter =28.7 J/oC ,the specific heat of the mixture =4.184 J/goC, density of the solution =1.02 g/mL.
What is the molar concentration of sodium hydroxide solution if a titration involved 0.0058 mole NaOH and 31.87 ml of sodium hydroxide.
Whats the volume of 1.05 mol of benzene at 20.7 C? The density of benzene of 0.879 g/mL.
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.
The standard cell potential of the zinc-air battery is 1.65V. If at 25 dgrees celsius the partial pressure of oxygen in the air diffusing through its cathode is 0.21 atm.
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