## sara1234 2 years ago Helppp mee

1. Nanoman

You use the atomic mass. Multiply each element by its atomic mass on the periodic table. Then add the totals up.

2. sara1234

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?

3. sara1234

show^^^***

4. Nanoman

Okay, hang on a sec.

5. sara1234

@jim_thompson5910 @Nanoman @Agent_Sniffles @dpaInc @dmezzullo

6. Nanoman

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)

7. Nanoman

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.

8. Nanoman

Does that help?

9. sara1234

thats all you do so the answer would be 212.266262

10. Nanoman

Yep.

11. sara1234

that seems too easy lol are you sure

12. Nanoman

Yeah, I'm sure.

13. sara1234

thank you