# 1 - What is the density of fluorine gas at STP

###### Question:

1 - What is the density of fluorine gas at STP?
2 - 45 ML of SO2 is collected at STP. How many SO2 molecules are in the sample?

3 - What is the mass of 8.25 X 10 @2 SLC2 moleculesl?
4 - A sample of hydrated madnesium sulfate is %1.1% water. What is the hydrate formula?

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