Fluorine has 7 valence electrons. Which of the following is true of a fluorine molecule (F2)? a. A pair of electrons will be sha
red between the fluorine atoms. b. Only 4 valence electrons will travel around each fluorine atom. c. Twelve valence electrons will travel around each fluorine atom, but only 2 will remain around the respective atoms. d. Each fluorine atom will take 1 valence electron from the other, and this will constantly happen back and forth.
2 answers:
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Answer:
The number of formula units in 3.81 g of potassium chloride (KCl) is approximately 3.08 × 10²²
Explanation:
The given parameters is as follows;
The mass of potassium chloride produced in the chemical reaction (KCl) = 3.81 g
The required information = The number of formula units of potassium chloride (KCl)
The Molar Mass of KCl = 74.5513 g/mol
Therefore, we have;
1 mole of a substance, contains Avogadro's number (6.022 × 10²³) of formula units
Therefore;
0.051106 moles of KCl contains 0.051106 × 6.022 × 10²³ ≈ 3.077588 × 10²² formula units
From which we have, the number of formula units in 3.81 g of potassium chloride (KCl) ≈ 3.08 × 10²² formula units.