Chemistry Determining Moles and Particles from Mass of a Compound

AI Thread Summary
The discussion focuses on calculating the number of ions from the mass of aluminum chloride (AlCl3). The molar mass of AlCl3 is determined to be 133.33 g/mol, leading to the calculation of 0.279 moles of AlCl3 from a mass of 37.2 g. Participants emphasize the importance of writing out the ionization equation to visualize the relationship between moles of AlCl3 and its ions, noting a 1:3 ratio of Al3+ to Cl-. The final calculations show that 0.279 moles of AlCl3 yield approximately 1.67 x 10^23 Al3+ ions and 5.01 x 10^23 Cl- ions. The discussion highlights the significance of understanding stoichiometric ratios in chemical calculations.
  • #51
rachelmaddiee said:
What does that mean?
I just wondered what it meant after working through this problem for two pages you produce a solution that looked from print style like textbook extract. What is #48?
 
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  • #52
epenguin said:
I just wondered what it meant after working through this problem for two pages you produce a solution that looked from print style like textbook extract. What is #48?
Oh, yes I found an example in my book and followed it!
 

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