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Category > Chemistry Posted 31 May 2017 My Price 6.00

phosphoric acid

8)

A 30.0 mL sample of phosphoric acid is neutralized with 18.0 mL of a 3.00 M NaOH solution in a titration.

  1. Write the balanced chemical equation for the reaction.
  2. What is the concentration of the phosphoric acid?

 

 

9)

When acid rain falls on a lake, it makes the water in the lake acidic, which may be harmful to the aquatic plants and animals living in the lake by changing the pH of their environment. Some lakes have a granite lake bed, while others have a limestone lake bed. The primary ingredient in granite is silicon dioxide (SiO2), which does not react with acids. The primary ingredient in limestone is calcium carbonate (CaCO3), which will react with an acid, forming water carbon dioxide, and a calcium salt. Those with a limestone lake bed are less affected by acid rain than those with a granite lake bed. How would you explain this phenomenon? 

Answers

SuperTutor
(15)
Status NEW Posted 31 May 2017 12:05 AM My Price 6.00

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