hree students (A, B, and C) are asked to determine the volume of a sample of ethanol. Each student measures the volume three times with a graduated cylinder. The results in millilitres are: A(87.1, 88.2, 87.6); B(86.9, 87.1, 87.2); C(87.6, 87.8, 87.9) The true volume is 87.0 mL. Comment on the precision and the accuracy of each student's results.

Q: The population density of worms in a particular field is 34 worms per cubic meter of soil. How many…

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Q: a small block of a metal with a mass of 223.1g when submerged in a beaker containing water, the…

A: Mass of metal = 223.1 g Density of metal = 7.41 g/cm3 = 7.41 g/mL

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Q: The average density of whole milk is 1.034g cm^-3. What is its density in lb gal^-1?

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Q: If all volume measurements were made with graduated cylinders instead of pipets, how would the…

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Q: A typical cheese contains 30.17% water, 31.23% protein, 34.39% fat by mass and the rest made up of…

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Q: What is the density of lead (in g/cm3 ) if a rectangular bar measuring 0.500 cm in height, 1.55 cm…

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Q: t takes a runner 37 minutes to complete a 10 km course. What is his/her average speed in miles per…

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Q: If an object as a density of 4.00 g/cm^3, what is its density in units of kg/m^3?

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Q: You are assigned the task of separating a desired granular materialwith a density of 3.62 g/cm3 from…

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Q: What is the mass of a substance that has a densityof 11.6 g/cm3 and a volume of 35 cm?

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Q: The engine in a boat has a displacement of 350in^3 what is the displacement of this in ft^3 in cm^3…

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Q: Express the result of the following calculation in scientific notation: 301 cm x 439 cm 1.32 x 10°…

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Q: The average radius of a molecule of lysozyme, an enzyme in tears, is 1430. pm. What is its radius in…

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Q: The radius of a barium atom is 2.22X10⁻¹⁰m. What is its ra-dius in angstroms (Å)?

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Q: The world record for the hundred meter dash is 9.58 s. What is the corresponding average speed in…

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Q: A copper refinery produces a copper ingot weighing 150 lb.If the copper is drawn into wire whose…

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