[matt1234]

Hello all

Would someone be kind enough to look over these questions to see if i did them correctly, i do not have answers to them. 

Thank you!

[Ak]

i didnt check your calculations or numbers u used but the method is correct

basically:

g/mol * mol = g

and

g / (g/mol) = g*mol/g = mol

[matt1234]

thank you ill have my teacher glance over them and will post back.

[sjb]

All seem OK at a first glance except practice problem e). What is the atomic weight of Cl (hint, see second sheet)?

[JGK]

4 moles of Phosphorus atoms 31g /mole =124 g

4 moles of Phosphorus as P₈, this is a bit ambigous and may be a trick question, personally I think the answer is once again 124 g.

The way the question is worded is asking for the weight of 4 moles of Phosphorus as P₈ and not 4 moles of P₈.

4 moles of Phosphorus is eqiivalent to 0.5 moles P₈

[matt1234]

Thanks guys you folks are the best. Glad im on the right track.