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Xelga [282]
1 year ago
10

How many moles of xenon trioxide are present in 1. 69 grams of this compound.

Chemistry
1 answer:
Vadim26 [7]1 year ago
3 0

Answer:

0.00944

Explanation:

Xenon mass number on the periodic table: 131.29

Oxygen mass number: 16.00

Add them to find the molar mass of xenon trioxide: 131.29+3(16) = 179.29g/mol

Convert this to moles

1.69g * \frac{mol}{179.29g} = 0.00944mol

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<h3>Further explanation</h3>

Writing electron configurations starts from the lowest to the highest sub-shell energy level. There are 4 sub-shells in the shell of an atom, namely s, p, d, and f. The maximum number of electrons for each sub-shell is  

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Charging electrons in the sub-shell uses the following sequence:  

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