# How do I find the density of pentadecane?

If you have an account on scifinder or if you can get one as a student, you would find the density listed as:

#"0.7687 g/cm"^3# at#20^@ "C"#

I use this as a university student and I find it useful and reliable, especially since they even give melting point and boiling point *ranges* determined by multiple sources, not just *singular* values.

Alternatively, looking up the "MSDS" (more recently changed to just an SDS) is always a good idea. Besides on Sigma Aldrich, I found an SDS for pentadecane here. It shows:

#"0.769 g/cm"^3# at#20^@ "C"#

And remember that it's a good idea to check multiple sources to see if their densities agree. I found other sources that had "relative" densities like

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Pentadecane density can be calculated by dividing its mass by volume, using the formula density = mass/volume. Make sure to use consistent units; for liquid density, grammes per milliliter, or g/mL, is commonly used.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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