A chemist must prepare 0.200 L of aqueous silver nitrate working solution. He'll do this by pouring out some aqueous silver nitrate stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in of the silver nitrate stock solution that the chemist should pour out. Be sure your answer has the correct number of significant digits.

A chemist must prepare 0.200 L of 1.00 M aqueous silver nitrate working solution. He'll do this by pouring out 1.82 mol/L aqueous silver nitrate stock solution into a graduated cylinder and diluting it with distilled water. How many mL of the silver nitrate stock solution should the chemist pour out?

0.110 L

Explanation:

According to the dilution law,

where,  

= molarity of stock silver nitrate solution = 1.82 M

= volume of stock silver nitrate solution = ?  

= molarity of diluted silver nitrate solution = 1.00 M

= volume of diluted silver nitrate solution = 0.200 L

Putting in the values we get:

Therefore, volume of silver nitrate stock solution required is 0.110 L

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.