1) When calculating the density of a liquid you measure 8.2 mL in a graduated cy

Question

1) When calculating the density of a liquid you measure 8.2 mL in a graduated cylinder with markings every 1 mL and measure the mass on a balance 9.548g. What is the density of this liquid with significant figures?

2) Consider the density calculation in problem 1. If you wanted to have a more precise density measurement typically that means spending money on better equipment. Would you spend money to (a) improve the volume to measurement to 0.01mL or (b) improve the mass measurement to 0.0001g or (c) improve both the volume and mass measurements? Briefly Explain

Explanation / Answer

density = mass/volume

        d= 9.548/8.2

     d= 1.1g/ml

note : in divison ,the final result should be reported up to the same number of significant figures as are present in the term with least number of significant figures

2)

(a) improve the volume to measurement to 0.01mL

because once we improve measurement volume with more no.of decimal placesas in mass ,we get more precise value.

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