The decay of a radionuclide with a half-life of 3.3 105 years ...

[sheilaspns]

The decay of a radionuclide with a half-life of 3.3  105 years has a rate constant (in yr- 1 ) equal to ________.
 
  A) 4.8  105
  B) 2.1  10-6
  C) 4.2  10-6
  D) 2.8  103
  E) 5.9  10-8

Question 2

The concentration of a solution of lithium chlorite dissolved in water is 12.5 by mass. In a ________ g sample of this solution, there are 52.5 g of water.
 
  A) 60.0
  B) 45.9
  C) 0.00600
  D) 23.8
  E) 1.67

[brittanywood]

Answer to Question 1

B

Answer to Question 2

A

[sheilaspns]

Thank you!

[brittanywood]

Always glad to help...