Chemistry question, help
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Chemistry question, help

[From: ] [author: ] [Date: 11-11-12] [Hit: ]
2)How many neutrons does an atom of each isotope contain?= 7.7L * (0.Mass = 5.2) Each element has several isotopes. Specify the isotopes.......
1) What is the mass of 7.7 L of gasoline at 20 degress Celsius? Assuming the density of gasoline to be 0.68 g/cm^3

2) How many neutrons does an atom of each isotope contain?
a) Kr (b) Br (c) Os (d) Re

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1) Mass = Volume * Density
= 7.7L * (0.68g/cm^3 * 1000cm^3/L) * (1kg / 1000g)
Mass = 5.2kg

2) Each element has several isotopes. Specify the isotopes.
1
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