anonymous
  • 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
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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goformit100
  • goformit100
First of all @albinjolly : A Warm Welcome to 'Open Study'. Please Read CoC (compulsory to read by all "Open Study" users) : http://openstudy.com/code-of-conduct
aaronq
  • 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).

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