
Unit 1
Quiz by Clara Heyder
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4 questions
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- Q1What is the density of an aqueous solution that has a mass of 10.081 g and 12.5 mL? Remember sig figs!0.8067777777770.8060.706.8062222230s
- Q2An 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
- Q3A 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 soluteMeasuring the solubility of several different solutes at a fixed temperatureMeasuring the solubility of the solute at five different temperaturesResearching the chemical properties of many different temperatures30s
- Q4The most efficient way to determine whether a reaction is an exothermic chemical reaction is to use -a temperature probean oxygen probea pH probea pressure probe30s