Ok I think I'm gettingvit I hope, I need to check my work.
Given 0.0449 mols Pt
Find mass
0.0449 mol Pt x 195.08/1 =8.76g Pt
Am I right
That looks ok to me but if you put units everywhere, I would include those in the factor also; i.e.,
0.0449 mol Pt x (195.08g Pt/1 mol Pt) = xx
Ok thank you very much
Yes, you are correct! To find the mass of a substance (in this case, Pt) given the number of moles, you can use the equation:
Mass = Number of Moles x Molar Mass
In this case, you have 0.0449 moles of Pt and the molar mass of Pt is 195.08 g/mol. By plugging these values into the equation, you correctly calculated the mass to be 8.76 grams of Pt. Well done!