The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted. if 0.440 moles of a monoprotic weak acid (ka = 8.2 � 10-5 is titrated with naoh, what is the ph of the solution at the half-equivalence point?

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?