SOL Ch. 1: Scientific Investigation
Quiz by Jaime Emmel
High School
Science
Virginia Standards of Learning
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25 questions
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- Q1What would be the best to measure 12.6 ml of liquid ethanol?25 mL graduated cylinder25 mL Beaker25 mL Volumetric Flask25 mL Erlenmeyer flask30sCH.1.b
- Q2A compound has a mass of 2.6632 x 10^2 g/mol. The number of significant figures in this mass is -542730sCH.1.g
- Q3What is the volume of the water in this graduated cylinder5.61 mL4.55 mL4.39 mL4.41 mL30sCH.1.b
- Q4If a sample has a mass of 1.25 x10^2 g and a volume of 51 mL, what is its density?250 g/mL0.0125 g/mL2.5 g/mL0.00025 g/mL30sCH.1.g
- Q5A bottle of chemical Q spills on the floor. According to the MSDS, what is the proper response to this accident?Absorbing the chemical with inert material and disposing of it in a chemical waste containerLetting the chemical evaporateDiluting the chemical with water, absorbing the liquid with inert materials, and disposing of it in the trashWiping up the chemical using paper towels and disposing of them in the trash30sCH.1.c
- Q6What is the best use for the fume hood?Removing toxic vaporsMixing chemicals that release O2Storing glasswareCovering volatile compounds30sCH.1.b
- Q7Students want to separate and compare the components of black ink and green ink. Which technique is best for the students to use?ChromatographyDecantingEvaporationFiltration30sCH.1.a
- Q8Which of these best describes the basis on which new scientific ideas are accepted or rejected?Historical SupportMoral and ethical beliefsCompelling EvidencePopular Support30sCH.1.i
- Q9A student determined that the density of a sample of tin is 8.00 g/mL, when the actual density of tin is 7.28 g/mL. What was the percent error in the student's calculation?9.9%91%9.0%0.72%30sCH.1.f
- Q10A student performed a series of titirations to find the concentration of an unknown acid. The results of the titrations are shown in the data table. What is the mean of this set of data?0.976 M1.00 M0.971 M0.984 M30sCH.1.d
- Q11The picture shows a filtration process. Which of these is least likely to pass into the test tube?Dissolved gasLiquid solventsSolid particlesDissolved Salts30sCH.1.a
- Q12After 1911, most scientist accepted the theory that the nucleus of an atom was very dense and very small and had a positive charge. What led scientists to accept this theory?Rutherford did an experiment firing alpha particles at a thin piece of gold foil.A new model proved that the quantum theory of the atom was inaccurate.Dalton's theory of the atom was over 100 years old.Scientists before 1911 used the scientific method of inquiry improperly.30sCH.1.i
- Q13A student is given a container of potassium nitrate crystals. In order to determine the exact mass of the potassium nitrate using a triple beam balance, he must know the -mass of the filled container and the chemical formula for potassium nitrate.mass of the filled container and the density of potassium nitrate.volume of the filled container and the volume of potassium nitrate.mass of the empty container and the mass of the filled container30sCH.1.a
- Q14What is the independent variable in the study?Vapor PressureTemperatureMelting PointMolar Mass30sCH.1.g
- Q15To determine if a reaction is exothermic, a student should use a -pH probemotion sensorpressure sensortemperature probe30sCH.1.h
