A student carefully placed 23.0 g of sodium in a reactor with an excess quantity of chlorine gas. When the reaction is complete, the student obtained 58 grams of salt. How many grams of sodium reacted?

22.8 grams

Explanation:

To calculate the moles :

The balanced chemical reaction is :

According to stoichiometry :

As 2 moles of is produced by = 2 moles of

Thus 0.99 moles of is produced by =  of

Mass of

Thus 22.8 g of is reacted.

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i think its 100

i hope this !