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| Questions:
TimeLeft: Posted: |
Chemistry
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2.) For the reaction shown below, if the reaction of 23.0 grams of NH3 (17.03 g/mol) produces a 54.7% yield, how many grams of CO(NH2)2 (60.06 g/m more... |
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Oct 30th |
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in which group number is neon found? more... |
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Oct 13th |
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finding out how much nitrgen is in s sampler of air more... |
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Sep 3rd |
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a hydrocarbon weighing .52gms on complete combustion withO2----->896 ml of Co2 NTPand .368 gm H2Odoes the law of conservation of mass apply here? more... |
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Jul 6th |
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A 20 g sample of Sulfur is mixed with 160 g of oxygen. Which is the limiting reactant and how many grams of the product will be formed in the reaction more... |
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Apr 21st |
CO(g) + 2 H2(g) <-----> CH3OH(g)
At 227 degrees C, K = 6.23 x 10 to the -3.
more... |
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Mar 28th |
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Calculate the energy of a photon of wavelength 5.356x10-7m. more... |
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Feb 6th |
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How many liters of fluorine gas, at standard temperature and pressure, will react with 23.5 grams of potassium metal? more... |
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Nov 24th |
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if only ^63 Cu + ^65 Cu exist in nature and the official AW cu =63.5468, calculate the % abundance of isotope ^63 Cu + ^65 Cu on planet earth. Round more... |
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Nov 8th |
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a sample of neon gas at stp will exert what pressure in mm at 75degC more... |
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Nov 7th |
1)How many isomers of a D-ketofuranose are possible of an alpha-D-ketohexofuranose?
2)Draw the the Fischer projection formula for Tri-O-methyl-bet more... |
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Oct 5th |
What family of elements is relatively unreactive and why?
Please have the answer in a short and simple form. more... |
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Sep 29th |
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How many milliliters of 0.55 M HCl are needed to react with 6.8 g of CaCO3? more... |
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Sep 24th |
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What is the volume in milliliters of 6.28 10-2 M adenosine triphosphate (ATP) that contains 1.51 mmol ATP more... |
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Sep 24th |
What is the volume in liters of 0.482 M manganese(II) sulfate that contains 45.2 g of solute?
just need to arrive at answer more... |
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Sep 24th |
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