2. A solution contains 2.38 g of magnesium
chloride, MgCl,. in 500 cm of solution
(a) Calculate the number of moles of
magnesium chloride in 500 cm of the
solution.
(b) What is the concentration of
(1) magnesium chloride in mol/dm
(II) chloride ions in g/dm3?​

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.

When the volume and number of particles of a gas are constant which of the following is also constant

Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine