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Nanoman
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You use the atomic mass. Multiply each element by its atomic mass on the periodic table. Then add the totals up.
sara1234
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can you please how me all the work i need it for an example so i can see how its done so i can do the rest by my self please?
sara1234
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show^^^***
Nanoman
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Okay, hang on a sec.
sara1234
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@jim_thompson5910 @Nanoman @Agent_Sniffles @dpaInc @dmezzullo
Nanoman
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Here are the masses of all the elements in the second chemical compound.
potassium | 39.0983 u (unified atomic mass units)
phosphorus | 30.973762 u (unified atomic mass units)
oxygen | 15.9994 u (unified atomic mass units)
Nanoman
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From the compound we get, K*3 + P + O*4 = K3PO4 = 39.0983*3 + 30.973762 + 15.9994*4 =212.266262 u. U can be substituted for grams per mole or g/mol.
Nanoman
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Does that help?
sara1234
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thats all you do so the answer would be 212.266262
Nanoman
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Yep.
sara1234
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that seems too easy lol are you sure
Nanoman
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Yeah, I'm sure.
sara1234
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thank you