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A hydrocarbon contains 40.0% carbon 6.66% hydrogen as well as the remainder oxygen. It has molar mass of 180.1 grams. Find out the molecular formula of the compound.
You titrate 25.0 mL of 0.110 M NH3 (Kb = 1.76 x 10-5) with 0.100 M HCl. What volume of HCl is required to reach the equivalence point and what is the pH at the equivalence point
a sample of 1.42 g of helium and an unweighed quantity of oxygen are mixed in a flask at room temperature. the partial
The formula for isopropyl alcohol is C3H8O. The product of the oxidation of isopropyl alcohol is C3H6O. State a balanced equation for the oxidation of isopropyl alcohol by dichromate ion in acidic solution.
Determine the equilibrium partial pressure of NH3 in a reaction vessel that initially contained 0.900 atm N2 and 0.500 atm H2 at 648K.
a gas sample in a piston assembly expands doing 588 kj of work on its surroundings at the same time that 372 kj heat is
The reaction of methane and water is a way to prepare hydrogen according to CH4 (g) + H2O = Co2 (g) + H2 (g) a) If 995 g of CH4 reacts with 2510 g of water, how many moles of reactants and products are there when the reaction is finished
What volume of 0.205 M K3PO4 solution is necessary to completely react with 122mL of .0110M of NiCl2? 2K3PO4+3NiCl2=Ni3(PO4)2+6KCl
a 9.528 quantity of zinc was allowed to react with 40.00 of sulfuric acid that had a density of 1.3028 . the reaction
Acetic acid is titrated with NaOH hydroxide. What is the relevant reaction. what is the equilibrium constant for this reaction, if Ka=1.76x10^-5 for acetic acid.
Which of these moieties would be expected to form a charge-charge (or coulombic or ionic or cation-pi) interaction with the receptor. ester linkage aromatic group carbonyl group amine group
a sample of 0.46g he and an unweighed quantity of o2 are mixed in a flask at room temperature. the partial pressure of
Assume that a solid has a constant of Cp,m=25 J/K-mol from 50K to 298K and that the DeBye approximation is valid from 0K to 50K. Estimate the standard molar entropy Sm for the solid at 298K.
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