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We generally consider the noble gases as chemically inert because they have the maximum number of electrons possible in their outer shell. But they finally found a way to combine the noble gas Xenon with Fluorine, how did they do that?
what is the hvap of a liquid that has a vapor pressure of 616 torr at 84.1 c and a boiling point of 95.5 c at 1 atm?
Problem- What is the hydronium ion concentration of a solution of 0.260 M acid and 0.640 M of its conjugate base if the ionization constant is 2.06 x 10E-6.
Lactic acid, HC3H5O3, is a monoproctic acid that forms when milk sours. An 18.50 ml sample of a solution of lactic acid required 17.52 ml of 0.1550 M NaOH to reach an end point in titration.
Hydrogen gas will react with oxygen gas to make steam (gaseous water) at 550 K. I mix 5.0 g of hydrogen and 10.0 g of oxygen in a 2 L flask. After equilibrium is established, there is 4.32 g of oxygen remaining. What is the equilibrium constant fo..
What mass of CaCl2 , when dissolved in 100.00 g of water, gives an expected freezing point of 5.0°C; CaCl2 is ionic? What mass of glucose would give the same result?
At what pressure does the mean free path of argon at 25C become comparable to the size of 1dm^3 vessel that contains it? take ?=.36nm^2
The sum of the substituent positions do not add up to lowest possible number. -The double bond in the ring does not contain the number one carbon. -Molecule has no cis-trans isomers. -The wrong name for the benzene derivative is used
Assume your unknown sample is 75% KHP, what mass of the unknown sample should you measure in order for your titration to require 20.0 mL 0.105 M NaOH
Problem- What is the pH of a solution that is prepared by dissolving 7.98 grams of salicylic acid (formula weight = 138.12 grams/mol) and 7.75 grams of sodium salicylate (formula weight = 160.10 grams/mole) in water and diluting to 700.00 mL. The ..
Predict the balanced chemical equation, including the correct state of matter (gas, liquid, aqueous, solid), for the reaction of iron nitrate with potassium oxalate.
In the process of recrystallization, sometimes, it's necessary to scratch the side of the flask with a glass rod. What does this do
NH4NO3(s) is dissolved in water
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