Determine the concentration of a phosphoric acid solution if a 25.00 mL sample of phosphoric acid of unknown concentration requires 35.77 mL of a 0.250 M NaOH solution to reach the equivalence point.

The concentration of given phosphoric acid solution is 0.357 M.

Explanation:

Given: = 25.00 mL,    

= 35.77 mL,             = 0.250 M

Formula used to calculate the concentration of phosphoric acid is as follows.

Substitute the values into above formula as follows.

Thus, we can conclude that concentration of given phosphoric acid solution is 0.357 M.

c. the scientist provides unbiased information to the government.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.