Problem: How many milliliters of 0.100 M NaOH are needed to completely neutralize 25.0 mL of 0.250 M H3PO4 ?  A. 62.5 mL B. 125 mLC. 31.3 mL  D. 188 mLE. 78.1 mL 

FREE Expert Solution

(1) Calculate moles of acid 

mol H+ = 25 mL (1x10-3 L1 mL)(0.25 mol H3PO41 L)(3 molH+1 mol H3PO4)

mol H+ = 0.01875

View Complete Written Solution
Problem Details

How many milliliters of 0.100 M NaOH are needed to completely neutralize 25.0 mL of 0.250 M H3PO4 ?  

A. 62.5 mL 

B. 125 mL

C. 31.3 mL  

D. 188 mL

E. 78.1 mL 

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Equivalence Point concept. If you need more Equivalence Point practice, you can also practice Equivalence Point practice problems.