The percent composition of all elements in hclo3 is:
a. 2% h, 20% cl, 78% o
b. 1% h, 42% cl, 57% o
c. 2% h, 68% cl, 30% o
d. none of the above

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.

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added

The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams