A titration of 25.0 mL of a weak acid with a strong base yields an equivalence point when 42.12 mL of the 0.15 M base has been added. What is the concentration of the acid?

Question

anonymous · Answer

In the combustion chamber of an engine, the initial volume is 450 cm3 at a pressure of 1.0 atmosphere. If the piston displaces 402 cm3 of the total, what is the resulting pressure in the combustion chamber? (Assume negligible temperature change.) Hint: Calculate the new volume by subtracting the amount of space the piston takes up from the initial volume.

9.410.27.99.0 atm

anonymous · Answer

So the new volume will be 48 because subtracting 402cm3 from 450cm3. Right?