• anonymous
1 mole of all substances contains the same number of specified particles. a) Calculate the number of molecules present in 3.2 g of Oxygen. b) How many grams of carbon will have the same number of atoms as 4g of Ca
  • Stacey Warren - Expert
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
  • schrodinger
I got my questions answered at in under 10 minutes. Go to now for free help!
  • goformit100
First of all @albinjolly : A Warm Welcome to 'Open Study'. Please Read CoC (compulsory to read by all "Open Study" users) :
  • aaronq
a) use: \(n=\dfrac{m}{M}\) where, n=moles, m=mass (in g), and M=molar mass (found on the periodic table). b) the number of molecules is proportional to the amount of moles. So, find how many moles 4 g of calcium are, then find the amount of grams (mass) of C that is equal to that amount of moles (use the same formula).

Looking for something else?

Not the answer you are looking for? Search for more explanations.