Answers edited by Monica

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• What is the concentration (M) of an aqueous methanol produced when 0.200 L of a 2.00 M solution was diluted to 0.800 L?
  
• Using an arrow,indicate the direction of polarity on all covalent bonds. Predict ,which molecules are polar and show the direction of dipole moment (a)CH3Cl (b)SO3 (c)PCl3 (d)NCl3 (d)CO2?