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A student measures the mass of an object as 2.32g and its volume as 34.56ml. The...

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reedcapps | Student, Grade 10 | (Level 2) Honors

Posted September 3, 2013 at 5:10 PM via web

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A student measures the mass of an object as 2.32g and its volume as 34.56ml. The student then calculates the density to be 0.067129629. There are two things wrong with the student's value for density. What are they?

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justaguide | College Teacher | (Level 2) Distinguished Educator

Posted September 3, 2013 at 5:20 PM (Answer #1)

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The student measures the mass of an object as 2.32 grams and its volume as 34.56 mL. The density calculated by the student is 0.067129629. Here, the units in which density has been calculated is not given.

As 2.32/34.56 = 0.067129629, the density calculated by the student in g/mL is correct. If the density is required in kg/m^3 it would involve multiplying the density that has been calculated by 10^6.

The information provided in the question is not sufficient to state exactly why the density that has been calculated is incorrect.

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