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bekas [8.4K]
3 years ago
14

What is flame emission spectroscopy

Chemistry
1 answer:
zmey [24]3 years ago
3 0
Flame emission is a method of chemical that uses intensity of light from a flame.
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Find the mass of one atom of uranium-235. Recall that the mass in atomic mass units is equal to the mass in grams of one mole of
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Answer:

3.90*10^{-25}kg/atom

Explanation:

The molar mass of uranium-235 is 235 g/mol. So one mole of uranium-235 has a mass of 235 g. Put differently 6.022×10^23 atoms of uranium-235 have a mass of 235 g. Knowing that, how can we use that to find the mass of one atom?

mass of one atom = \frac{235 g}{1mol} *\frac{1 mol}{6.022*10^{23}atoms } *\frac{1kg}{1000g}= 3.90*10^{-25}kg/atom

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Intermolecular forces allow which of the following substances to be the least fluid?
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Out of the options, glass is the least fluid. The proof of this also lies in the fact that glass is the most difficult to melt out of all of the mentioned substances, and melting point gives us a rough estimate of the strength of intermolecular forces.
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List two ways that the first ionization and second ionization of an atom are similar
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