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Unit 1

Quiz by Clara Heyder

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4 questions
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  • Q1
    What is the density of an aqueous solution that has a mass of 10.081 g and 12.5 mL? Remember sig figs!
    0.806777777777
    0.806
    0.706
    .80622222
    30s
  • Q2
    An experiment produced 0.10 g CO2 with a volume of 0.056 L at STP. If the accepted density of SO2 at STP is 1.96 g/L, what is the approximate percent error?
    8.2%
    7.1%
    110%
    92%
    30s
  • Q3
    A student hypothesizes that the solubility of a particular solute in water is nearly constant as temperature varies. The student can best test the hypothesis by doing which of the following?
    Drawing diagrams of the molecular structures of water and of the solute
    Measuring the solubility of several different solutes at a fixed temperature
    Measuring the solubility of the solute at five different temperatures
    Researching the chemical properties of many different temperatures
    30s
  • Q4
    The most efficient way to determine whether a reaction is an exothermic chemical reaction is to use -
    a temperature probe
    an oxygen probe
    a pH probe
    a pressure probe
    30s

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