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Nicotine, one of the major components in tobacco products, is composed of carbon, hydrogen and nitrogen. When 4.38 mg of the compound is combusted 11.9 mg of carbon dioxide and 3.41 mg of water are produced. If the molecular weight of nicotine is 162.2 g/mol what is the molecular formula for this compound?
The Ka for hydrofluoric acid is 7.1x10^-4. The percent ionization of hydrofluoric acid at a concentration is 0.43 mol/L is _____. looking for percent numbers since we're doing percent ionization stuff.
To determine the concentration of a solution of lactic acid a chemist titrates a 20.50 mL sample of it with 0.1010 M NaOH and finds that 10.76 mL of titrant are required to reach the equivalence point. What is the concentration of the lactic acid ..
Draw the covalent structure of the tripeptide Tyr-Lys-Leu, with all functional groups in their predominant ionic forms at pH 7
the following reaction is carried out in a closed vessel.2 nog cl2g ---gt 2 noclgif the partial pressure of no is
Question- Given the following ?H and ?S values, determine the temperature(s) at which the reactions would be spontaneous
Solid PBr2 is added to 100.0 mL of water and the resulting mixture of solid and solution stirred periodically over 30 minutes. After filtering the solid from the solution, the solution is found to have a chloride concentration [Br-] = 0.0148 M. Wh..
Calculate the delta Hrxn for the following equation- 4KNO3(s) - - > 2K2O(s) + 2N2(g) + 5O2(g)
A piston has an external pressure of 12.0 atm . How much work has been done in joules if the cylinder goes from a volume of 0.170 liters to 0.490 liters?
Rank cyclohexanol,tetrahydropyran-3-ol,tetrahydropyran-2-ol,and 2-cyclohexen-1-ol based on their SN1 reactivity. They all form secondary carbocations, correct? How does the oxygen affect their SN1 reactivity
Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.041 moles of sulfuric acid is mixed with water to make 169 mililiter of solution, what is the molarity of H+? Answer in units of M.
Which of the following substances has a standard heat of formation of zero? A. pb @ 1000 degrees C B. C3H8 @ 25.0 C and 1 ATM pressure C.
What is the correct order of procedures for making this determination?
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