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4HCl MnO2=MnCl2 2H2O Cl2. When .375 moles of HCl reacts with excess MnO2, a.) How many moles of Cl2 form? b.)How many grams of Cl2 form?
The heat of vaporization of water =40.66 kJ/mol at 100 °C. Compute the quantity of heat that is absorbed/released when 9.00 grams of steam condenses to liquid water at the temperature of100 degree celsius.
A sample of laughing gas occupies 500.0Ml at a standard temperature and pressure . what volume will the gas occupy at 95.0oC and 525 torr.
What mass of NaOH is needed to precipitate the Cd2+ ions from 68.0 mL of 0.500 M Cd(NO3)2 solution?
Explain why the bond dissociation energy for the C-C sigma bond in propane is lower than the BDE for the C-C bond in propene.
If I initially have a gas at a pressure of 12 atm a volume of 23 liters, and a temerature of 200k, and then I raise the temperature to 14 atm and increase the temperature to 300k, what is the new volume of the gas ?
In a gas mixture, the partial pressures are argon 425 , neon 60 , and nitrogen 125 .What is the total pressure exerted by the gas mixture?
How much heat (in kJ) is evolved in converting 1.00mol of steam at 130.0C to ice at -50.0C? The heat capacity of steam is 2.01 and of ice is 2.09 .
What is the maximum number of electrons that could be ejected from this metal by a burst of light (at some other frequency) with a total energy of 1.06× 10-7 J?
What is the molar mass of the unknown compound if the solution has a freezing point of -5 oC?
What is the density in g/L of a gas mixture that contains 27% F2 and 73% He by volume at 714 mm Hg and 27.5 C.
At 710.mm hg a sample of nitrogen gas occiuped 625 ml.what volume does gas occupy if the temperature remains constant and the pressure increases to760.mm hg?
Sketch the typical stress-strain curve for a metal and a ceramic. Using the sketch, indicate the following properties; elastic and plastic regions, yield points, Ultimate Tensile Strength (UTS), strain energy and fracture toughness.
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