What is relative point
2 answers:
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Answer:
<h2>The answer is 34 cm³</h2>Explanation:
The volume of a substance when given the density and mass can be found by using the formula
From the question
mass of aluminum = 91.8 g
density = 2.7 g/cm³
It's volume is
We have the final answer as
<h3>34 cm³</h3>Hope this helps you
Answer:
a. is an excel document. i uploaded as an attachment
b. concentration = 0.327
Explanation:
in the graph i uploaded for answer a, the x variable is conductivity, while the y variable is % salinity.
the calculated regression line was calculated using excel =
y = 0.057655X - 0.00891
for answer part b,
we take x = 5.82
when we put this into the y formular
y = 0.057655(5.82) - 0.00891
y = 0.3355521 - 0.00891
y = 0.3266421
this is ≈ 0.327
in conclusion, using the standard curve, the concentration of unknown salt is 0.327. the % salinity = 0.327
