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What additional information does the VSEPR theory give you beyond electron dot structures, in terms of molecular structure?
Calculate the amount of work done against an atmospheric pressure of 1.00 atm when 500.0 g of zinc dissolves in excess acid at 30.0°C. Zn(s) + 2H+(aq) → Zn2+(aq) + H2(g)
Explain what are the chemical reactions that take place when you try to crystallize salts formed by mixing (+-)-s-butylamine and (+-)-tartaric acid
Explain why selectivity in isocratic HPLC system ideally should not depend on eluent composition. (Use thermodynamic derivation to support your explanation).
What is the molarity of a solution prepared by dissolving 4.92 g of calcium nitrate, Ca(NO3)2, in 250 mL of water? (The molar mass of Ca(NO3)2 is 164 g/mol.)
Given that the molar mass of H3PO4 is 97.994 grams, find out the number of grams of H3PO4 needed to prepare 1.20 L of a 0.8 M H3PO4 solution.
State a reaction to demonstrate why freshly distilled cyclopentadiene mist be reacted right away with maleic anhydride rather than allowing it to stand until the next lab period.
During a race, a runner runs at a speed of 6 m/s. 2 seconds later, she is running at a speed of 10 m/s. What is the runner's acceleration? Show your work.
question the enthalpy of vaporization of carbon tetrachloride is 30.0 kjmol at its normal boiling temperature of 80.7
Adjust the battery voltage higher and describe the effect on electron movement in the wire. Under the materials menu, select Photoconductor. What, if anything, happens?
Compute the solubility of CO2 in H2O at 0 degrees Celsius, at 1atm. The solubility of CO2 at 1atm is 0.348g/1000ml of H2O at 0 degrees Celsius.
WHen electrons in a molecule are not found between a pair of atoms but move throughout the molecule, this is called
A gaseous oxide of nitrogen has an empirical formula of NO2. A 0.556 g sample of this gas in a 250. mL container at 24ºC exerts a pressure of 44.8 cm Hg. What is the molecular weight of the gas? What is the molecular formula of the gas
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