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A sample of a compound is decomposed in the laboratory and produces 120.1gcarbon, 30.2ghydrogen, and 80.0goxygen.
FeCl2 is water soluble. what ions are formed when this compound dissolves in water. If the solution is 0.255 M FeCl2 what is the molarity of each ion in aqueous solution
Carbon-14 has a half-life of 5730 years. In a plant fossil, you find that the C^14 has decayed to 1/16.0 of the original amount. How long ago was this plant alive. Express your answer numerically in years.
How many moles of O2 are required for the complete combustion of 2.2 g of C3H8 to form CO2 and H2O?
a certain substance has a molar enthalpy of vaporization of 31.6 kjmol. how much of the substance is in a sample that
If 6.00mL of 0.1000 M NaOH solution is required to just neutralize excess acid after 20.00mL of 0.1000 M HCl was added to 1.00 g of an antacid, define how many moles of acid can the antacid counteract per gram
Aluminum reacts with oxygen to yield aluminum oxide. If 5.0 g of Al reacts with 4.45 g of O2, what is the empirical formula of aluminum oxide
Consider the combustion of H2: 2h2 + o2->2h2o. if hydrogen is burning at the rate of 0.77mol/s, what is the consumption of oxygen. what is the rate of formation of water vapor.
What value do you get for E using the Nernst Equation? The equation is E standard = -RT/nFln[1/Cu]. The values to plug in are E = 0.340 - (8.314*298)/(2*96500)ln[1/0.10]. I calculated E = 0.31044 V. Is this correct. Any help appreciated
A solution of NH3 was prepared by diluting 8.29 mL of 27.62 wt% NH3 [density=0.89 g/mL] up to 564.0 mL. The molecular mass of NH3 is 17.0305 g/mol. Find the concentration of NH3 in M.
If you start with 5.00g Cu(s) what would the theoretical yield of copper (I) oxide. If the reaction isn't very efficient and only has a 26% yield, how many grams of copper(I) oxide would actually be produced
For the following pairs of orbitals, indicate which orbital is lower in energy, and give a brief explanation why. a) sulfur 3p vs. sulfur 3d
A liquid fuel mixture contains 31.95 hexane( C6H14) , 15.50 heptane (C7H16) , and the rest octane(C8H18) . What maximum mass of carbon dioxide is produced by the complete combustion of 11.0 kg of this fuel mixture
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