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how many grams of methylamine must be combusted to raise the temperature of 431 g of water from 11.0 degrees Ce to 41.0 degrees C?
A gas at 89 degrees celcius occupies a volume of 0.67 L. At what kelvin temperature will the volume increase to 1.12 L. ?
What is Kp for the reaction at this temperature? B. For the reaction N2(g)+ 3H2(g) 2NH3(g) Kp = 2.20×10?3 at 268 C . What is K for the reaction at this temperature?
A microwave oven operates at 2.50GHz. What is the wavelength of the radiation
A solution is prepared by adding 60.0 mL of 0.060 M HBr to 180.0 mL of 0.70 M HI. Calculate the concentrations of all species in this solution. HBr and HI are both considered strong acids
What will be the final temperature of a 15.0g sample of water that is heated with the addition of 4.2kJ at 18 0C
During this process, 346 J of work was done by the system and its internal energy 9185 J. What is the specific heat of the gas?
What mass of this substance must evaporate in order to freeze 250 of water initially at 25? (The heat of fusion of water is 334 the specific heat of water is 4.18 .)
A molecule in which centers of positive and negative charge do not coincide must be.
A procedural change would be essential if a boy want to determine the tomato juice's acidity by titrating a sample of juice with NaOH(sodium hydroxide) solution Briefly explain What change would you make to the procedure ?
A balloon filled with helium has a volume of 2.41 L on a warm day at 311 K. It is brought into an air-conditioned room where the temperature is 295 K. What is its new volume.
When 20 mL of a 315 mL stock solution containing 2.2 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution.
Electrons are ejected from sodium metal by any light that has a wavelength shorter than 544 nm. What is the kinetic energy of an electron
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