Question related to density determination experiment:List the laboratory equipmentsyou need to determine the density of an object. Assume there is a...
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Question related to density determination experiment:

1.    List the laboratory equipments you need to determine the density of an object.




2,. Assume there is a sample of small pieces of  iron alloy  (cut randomly) in a bottle container. 

a)    Please write a procedure for the determination of the density of this alloy using the samples in the bottle.








b)    b) if the density the alloy you obtained from your experiment is 6.87g/mL and the reported actual density is 7.15g/cm3, what is the percent error of your experiment. (show calculation)




3.How does temperature affect density? Explain



4.        a) What is specific density?


b)    What is the unit for specific density? _____________


5. The density of a solution varies with the concentration of the colution.

The density of a sodium chloride (table salt) solution at different percent concentration is given below.


Plot a graph of density vs percent concentration for the solution.

concentration              density( g/ml)

2%                               1. 0111

10%                             1.06879

16%                             1.11401

20%                             1.14533

26%                             1.19443


Predict the concentration of a salt solution that has a density of 1.08365g/mL

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