Question #8697e

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Answer 1 · 2017-05-23T09:08:15

Na has a mass of 23 grams and Cl has a mass of 35.5 grams. You can produce #62.62# grams of table salt.

In order to produce 1 mol of NaCl, you need 23 grams of Na and 35.5 grams of Cl. NaCl has a molecular mass of 58.5 grams.

#Na + Cl -> NaCl#

Now try these: Your Na is in excess. But your Cl is not.

If 35.5 grams of Cl react with 23 grams of Na to form 1 mole (#58.5# grams) of table salt, 38 grams of Cl needs which amount of Na?

Na amount #=(38*23)/35.5# which is #=24.62# grams.

It means after the reaction you will have #40-24.62=15.38# grams of sodium (left).

You produce 1.07 mol of table salt. Its weight is #1.07*58.5=62.62# grams.