What is the average mass of a single chlorine atom in grams?
Answers I tried and failed:
70
2.13x10^25
5.88x10^23
1.178x10^-22
2.13x10^-21

m = 5.81x10-²³ g Cl

Explanation: First is to find the number of moles of Cl in 1 atom of Chlorine. To solve this we will use the Avogadro's Number to convert atoms to moles.

1 atom Cl x 1 mole Cl / 6.022x10²³ atoms Cl

= 1.66x10-²⁴ moles Cl

The next step is to convert the moles of Cl to mass using its molar mass.

1.66x10-²⁴ moles Cl x 35 g Cl / 1 mole Cl

= 5.81x10-²³ g Cl.

Cancel out the units of moles Cl.

there all right good

explanation:

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