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Propose a structure for an amine of formula C4H9N, which liberates a gas when treated with NaNO2 and HCl. The 13C NMR spectrum is as follows, with attached protons in parentheses: ? 14(2), ? 34.3(2), ? 50.0(1).
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An analysis of an oxide of nitrogen with a molecular weight of92.02 amu gave 69.57% oxygen and 30.43 % nitrogen. What is the empirical formula of the compound?
15 grams of NaCl is dissolved completely in a beaker containing 200mL of water. What is the Na+ concentration in moles/liter in the final solution?
What could a source of error be during a titration lab that is not a humans fault?
What is the molarity, to the hundredths place, of 5.0 g HPO3 in 300. mL of solution?
What is an example of a specific transition metal solution, including the oxidation state of the transition metal, and the color of the solution, and the complex ion that the transition metal forms in that solution if ap ...
At a given pressure and temperature, it takes 198.7 sec for a 2.6 L sample of Kr to effuse through a porous membrane. How long does it take for 2.6 L Ar to effuse under the same conditions?
20.2 g of an unknown molecular solute is dissolved in 5.65 moles of aniline (C6H5NH2), causing the boiling point of aniline to increase by 3.79 °C. Calculate the molar mass of the solute. For aniline, the molar mass is 9 ...
Name five types of radiation. Describe, in table form, their mass number, charge, and identity.
A power plant converts the heat energy in coal to electricity with 35% efficiency. Transmission losses are 10%. A factory then uses that electricity to make hydrogen with 50% efficiency, which is used in a fuel cell to m ...
A 0.235g sample of a solid is 92.5% NaOH and 7.5% Ca(OH)2, by mass requires 45.6mL of a HCl solution for its titration. What is HCl molarity?
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