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Author Question: How many atoms of oxygen are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99 ... (Read 69 times)

londonang

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on: Aug 27, 2018
How many atoms of oxygen are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99 g/mol.
 
  A) 1.23  1023 O atoms
  B) 2.96  1024 O atoms
  C) 2.87  1025 O atoms
  D) 1.10  1024 O atoms
  E) 3.19  1024 O atoms

Question 2

How many valence electrons does an atom of Ti possess?
 
  A) 2
  B) 4
  C) 6
  D) 8
  E) 0


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adammoses97

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Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

B


londonang

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Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

mjenn52

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Reply 3 on: Yesterday
Excellent

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