Crystal23970 Crystal23970

03-05-2020
Chemistry

contestada

Convert 99.0 g Se to moles Se.

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osikbro osikbro

03-05-2020

Answer:

About 1.254 moles

Explanation:

The first step is to find the molar mass of selenium. If you take a look at a periodic table, you will find that there is a little number underneath that says something around 78.96 g/mol. Dividing 99 grams by this number, you get about 1.254 moles of Se. Hope this helps!

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