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  1. which volume has the most uncertainty associated wit the measurement?

A10mL
B10.0mL
C10.00mL
Ball have the same degree of uncertainty

  1. A beaker contains 145.675 mL of a saline solution. If 24.2 mL of the saline solution are removed from the beaker, what volume of solution remains?

Verified Answer :

Edufirst
  1. The option a. 10 mL has the most uncertainty associated with it, because it has only 2 significative figures, while 10.0 mL has three significant figures and 10.00 has four significant figures.

    2. The volume of solution that remains is 145.675 mL - 24.2 mL = 121.475 mL rounded to one decimal  = 121.5 mL, given that the measure with the most uncerntainty has only one decimal.
     

     

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