Number of moles and number of grams?!?!?

determine the number of moles in:


35 g of CuSO4*5H2O





determine the number of grams in each:


2.5 moles of NaCl


0.50 moles of H2SO4


1.70 moles of KMnO4


0.25 MOLES OF KCl


3.2 moles of CuSO4*5H2O





please help me i have no idea how to do this.





Thanks in advance!

Number of moles and number of grams?!?!?
For the first one, you add up all the molar masses for each indivdual element. and then take 35g times mol/g(molar mass) of CuSO4*5H2O. Make sure you have the right number of each element when finding molar mass. ex: there would be 10 hydrogens, 1 copper etc.





the others, you also need to find the molar mass, and then you place ___ moles of ____ times the molar ratio or g/mol.








Hope it helps!
Reply:The equation for solving is





moles=number of grams over atomic weight, or m=g/mw





Do you know how to solve molecular weight? You may just want to e-mail me