407 MOLARITY (14pts)
  • Write all information in your bound journal
  • Make it NEAT and in COMPLETE SENTENCES
  • Box final answers if doing math.
  • -4pt if you do not title and date the entry
  • -1pt (per infraction) if you do not clearly identify the sections, or number the problems

 
    HOW TO SOLVE FOR MOLARITY
     

     
  1. You are given 43.5 grams of NaCl:
    1. How many moles do you have?
    2. If the NaCl was dissolved in 1.00 liter, what would be the molarity?
    3. If the NaCl was dissolved in 500.ml, what would be the molarity?
    4. If the NaCl was dissolved in 100.ml, what would be the molarity?
  2. You are given 12.9 grams of NaCl:
    1. How many moles do you have?
    2. If the NaCl was dissolved in 1.00 liter, what would be the molarity?
    3. If the NaCl was dissolved in 500.ml, what would be the molarity?
    4. If the NaCl was dissolved in 100.ml, what would be the molarity?
  3. You are given 0.500M solution of NaCl:
    1. How many moles do you have in 1.00 liter?
    2. How many moles do you have in 10.0ml?
    3. How much would you use if you only need 0.125moles?
    4. How many grams of NaCl are in 30.1ml of a 0.500M solution?
  4. You use 100.ml of a 0.355M solution of sodium hydroxide. You want to neutralize the base with a 0.125M solution of HCl. How much of the acid (mls) must you use?
  5. You use 100.ml of a 0.125M solution of aluminum hydroxide. You want to neutralize the base with a 0.125M solution of HCl. How much of the acid (mls) must you use?

 

 

 

 

 

 
 

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