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Author Question: Phenolphthalein has often been used to monitor the progress of acid-base neutralization reactions. ... (Read 111 times)

809779

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on: Aug 27, 2018
Phenolphthalein has often been used to monitor the progress of acid-base neutralization reactions. What color will phenolphthalein be if there is an excess of base present?
 
  A) colorless
  B) green
  C) pink
  D) yellow

Question 2

What is the mass defect of the lithium-9 isotope in g/mol? Lithium-9 has an atomic mass of 9.0273 g/mol.
 
  What will be an ideal response?


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Leostella20

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

C

Answer to Question 2

0.0485 g/mol


809779

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Reply 2 on: Aug 27, 2018
Gracias!

bulacsom

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Reply 3 on: Yesterday
Excellent

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