6.2 g of NaOH is added to 200 mL of 0.1 M Sr(OH 2) .Find pH of the solution

Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly

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.

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?