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Author Question: Tetraboric acid, H2B4O7, is prepared by heating boric acid, H3BO3 (a condensation reaction involving ... (Read 157 times)

fnuegbu

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on: Aug 27, 2018
Tetraboric acid, H2B4O7, is prepared by heating boric acid, H3BO3 (a condensation reaction involving water loss). If 400.0 mmol H3BO3 are used, what mass (g) of H2O is formed, assuming quantitative stoichiometric conversion?
 
  A) 5.77
  B) 0.500
  C) 0.320
  D) 7.21
  E) 9.01

Question 2

6.0 karat gold contains ________ gold.
 
  A) 6.0
  B) 25
  C) 50.
  D) 75
  E) 1.0  102


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blazinlyss

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

E

Answer to Question 2

B


fnuegbu

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Reply #2 on: Aug 27, 2018
TY


blazinlyss

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Reply #3 on: Aug 27, 2018
You're welcome


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