3 years ago

What characteristic bright line spectrum of an elementforced when electrons?

1 answer:

8 0

The characteristic bright-line spectrum of an element is produced when its electrons return to lower energy levels To be in the ground state all electrons must be in their lowest energy state; all excited atoms must lose energy. The lost energy appears in the form of light. Hope this helped :)

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Convert mole to gram by multiplying the molar mass of sodium

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A salt shaker filled with 17.0g sodium chloride contain how many moles?

kati45 [8]

The molecular formula for sodium chloride is NaCl. The sum of their atomic weights is (22.99 grams/mole + 35.45 grams/mole) = 58.44 grams/mole
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n = 1.5atm (15L) / .0821 (280k) = .98 mol NaCl

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Explanation:

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