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The position uncertainty of an electron is 1.53×10^-13 m. What is the uncertainty of its velocity?
Calculate the standard reaction enthalpy for the oxidation of nitric acid to nitrogen dioxide, 2NO(g) + O2(g) ----> 2NO2(g) from the standard reaction enthalpies of
Compute the pH during the titration of 30.00 ml of 0.1000 M KOH with 0.1000 M HBr solution after the subsequent additions of acid.
ethene (C2H4) and H2 form ethane (C2H6). If 159 kJ is given off per mole of C2H4 reacting, how much heat is released when 14.9 kg of C2H6 forms
Water is flowing in a horizontal pipe (1 inch, schedule 40) with a velocity of 2 ft/s and a pressure of 10 psia. The water enters a second section of pipe that is 4 inch schedule 40. What is the pressure in the section of pipe if friction can be i..
State the name of the major organic product produced when 2-methylpropanoyl chloride react with3-methylbutanoic acid in the presence of the weak base, pyridine
Three compounds were found to have the same empirical formula, that is the same number of carbons, hydrogens, oxygens, etc.; however, compound A absorbs at 268 nm, B at 278 nm, and C at 316 nm. What might you conclude about the structures of these..
Iron(III) nitrate in water solution reacts with potassium sulfide in water solution to form aqueous potassium nitrate and solid iron(III) sulfide. State a balanced chemical equation for the reaction.
Indicate all atomic orbitals and molecular orbitals as well as molecular orbitals for both the core and valence electrons. Fill your MO in part b with the appropriate number of electrons.
What is the molarity of an unknown gas that weighs 0.110 g in a 63.5mL container at 752 torr and 23 C
Decane has 4.5 min retention time on HP-1 column (25 m length, 0.25 mm I.D., 0.33 mkm film thickness) at 120C. Calculate the capacity factor for decane on HP-1 column (25 m length, 0.25 mm I.D., 0.5 mkm film thickness) at 120C. Explain.
How to improve yield for methyl-m-nitrobenzoate from nitration of methyl benzoate experiment
A voltaic cell consists of an Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell. Calculate [Pb2+] when [Mn2+] is 2.7 M and Ecell = 0.37 V.
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