02/25/22

For the reaction 2NH3(g)↽−−⇀3H2(g)+N2(g)
the equilibrium concentrations were found to be [NH3] =0.250 M, [H2] =0.420 M, and  [N2] =0.750 M.What is the equilibrium constant for this reaction? Kc=______
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02/25/22

How many molecules of water, H₂O, are produced from 2.99 moles of water, H₂O?
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02/25/22

How do you solve this?
Calculate the volume in liters of a 0.00747 mol/L calcium sulfate solution that contains 150.g of calcium sulfate CaSO4.Round your answer to 3 significant digits.
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02/25/22

How do you solve this?
A chemist adds 350.0mL of a 0.233M calcium bromide CaBr2 solution to a reaction flask. Calculate the mass in grams of calcium bromide the chemist has added to the flask. Round your answer... more
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02/25/22

When a compound containing cesium ion is heated in a Bunsen burner flame, photons with an energy of 4.30 x 10-19 J are emitted. What color is the cesium flame?
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02/24/22

What is the mass, in grams, of 9.10×1024 molecules of methanol (CH3OH)?
What is the mass, in grams, of 9.10×1024 molecules of methanol (CH3OH)?
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02/24/22

How many atoms are in 127 g of calcium?
How many atoms are in 127 g of calcium?
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02/03/22

Stoichiometry help #5
In a soda-acid fire extinguisher, concentrated sulfuric acid reacts with sodium hydrogen carbonate to produce carbon dioxide, sodium sulfate, and water.(a) How many moles of sodium hydrogen... more
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