Friday, February 22, 2019
Laboratory Techniques & Measurements Essay
Laboratory Techniques & Measurements physical objectivesBecome well-known(prenominal) with several most-valuable laboratory techniques. Gain proficiency with some of the common measuring devices use in a chemistry laboratory. Determine the majority, mass, length, temperature, and density of objects and liquids1. Length MeasurementsObjectLength (cm)Length (mm)Pop Can12.0120.0iPhone11.7117.0TV Remote16.3163.02. Temperature Measurements impatient water from tilt (C) 47simmering Water (C) 61Boiling Water after 5 mins.(C) 73Cold water from tap (C) 15Ice Water (C) 6Ice Water after 5 mins. (C) 43. loudness MeasurementsTest tube glitz (mL) 10Number of drops in 1 mL 9Pipet volume (mL) 44. potty MeasurementsObjectEstimated Mass (g) 7.8Actual Mass (g) 9.25. concentration MeasurementsMass AMass BMass A-BObject graduateCylinder +SubstanceHypothesis on Salt Compared to Water The salinity solution will have a greater density than smooth water as the substance mass is lager.6. Densitie s of Irregular ObjectsMass AMass BMass B-AObjectGraduatedCylinder good deal(mL)GraduatedCylinder + Object (mL)Object Volume (mL)Object Mass (g)Density M/VMetal boltWater excisionMethodQuestionsA. Some reasons for the water not boiling at blowC could be different temperature settings, not allowing enough time to to the full boil and experimental error.B. 102C- ampere-secondC 99.2-100100C 1002-0.8100C 1000.02 X100%-0.008X100=2=-0.8C. Height= 3.6, Base=4.21, Width= 1.17Volume = bXh/w4.21X3.6/1.17 = 13.31Density= mass/volume21.3/13.31 = 1.6D. Density= mass/volume19.30=26.15/V-26.15X19.30=V-504.69=VV=504.69ConclusionSome saucy things that I lettered from this lab are experimental errors can drastically effect the outcome and adding a substance such as brininess to water will increase the density of water. I believe I did meet the lab objectives because in result of this lab I became familiar with lab techniques, gained experience using lab measuring devices and I learned the volum e, mass, length temperature and density of some objects and liquids.
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