Ms. Moulden’s science class is learning to identify metals by their density. She gave the students a table, shown below, to help
identify their samples. One student’s sample has a volume of 12. 82 cm3 and a mass of 114.61 g. Calculate the density of the sample.
Using the table, what is the identity of the student’s sample?
Using the table, what is the identity of the student’s sample?
2 answers:
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First convert celcius to Kelvin.
20 + 273 = 293K
31 + 273 = 304K
Now we can set up an equation based on the information we have.
V1 = 5
P1 = 365
T1 = 293
V2 = 5
P1 = x
T2 = 304
The equation be:
Now just solve.
1825/293 = 5x/304
Cross multiply.
554800 = 1465x
Divide both sides by 1465
x = 378.7030717 which can then be rounded to 378.7 mmHg