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A gas mixture contains helium and oxygen at partial pressure of 255 torr and 0.450 at. What is the total pressure in mmHg of the mixture after it is placed in a container 1/2 the volume of the original container?
Heat Capacity explained in this answer, Given the following heat capacity data for 2-propanol, determine the amount of heat required to heat 500 mL of 2-propanol from 0 C to it's boiling point.
A piece of iron limestone weighing 0.1965g was allowed to react with an excess of hydrochloric acid. The calcium in it was precipitated as calcium ethanedioate.
What kind of bond is being made with the orbitals between M and C, σ or Ï€? Predict what will happen to the strength of the CO bond in a metal â€"CO complex as compared to CO alone.
The first ionization energy of bismuth is Ei1 = +703 kJ / mol. What is the longest possible wavelength of light that could ionize an atom of bismuth?
What is H in kJ for the process of freezing a 28.9 g sample of liquid silver at its normal melting point of 961 oC.
If 17.9 mL of 0.800 M HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia.
If all the energy obtained by by burning 1.26 lb of butane (fuel value is 10.85 kcal/g) is used to heat 126.0 kg of water at an initial temp of 19.7C, what is the final temperature.
Type your question hereA 0.1390-g rock sample of unknown concentration was dissolved in HCl and diluted to 100.0 mL. Aliquots of 10.00 mL of this unknown solution were added to different volumes of a 2.08 ?g/mL Ca standard solution and diluted to ..
2NOCl(g) → 2NO(g) + Cl2(g) ,At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr.
Which anion gives precipitate with Ba+2 ion? Iv) Which anion evolves a gas when acid is added? V) Which anion releases an odorous gas as a product?
Circle the form in which a peptide bond is typically found. Describe how the structure of a peptide bond affects protein structure.
What is the molarity of a solution that contains 41.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol}) in 280 mL of solution?
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