Question

A mixture of the compounds magnesium sulfide and calcium chloride contains 16.1 g of magnesium and is 49.1 % by mass calcium chloride. The compound magnesium sulfide is 56.9 % by mass sulfur. The compound calcium chloride is 63.9 % by mass chlorine. Calculate the mass (g) of chlorine in mixture.

Answer 1

well

Answer 2

i would ask myself these questions:

* what mass of mag sulfide would contain 16 grams of Mg?
* given this mass of mag sulfide, what is the mass of the mixture?
* given the mass of the mixture, what's the mass of the calc chloride in the mixture?
* given the mass of calc chloride, and the fact that its approx. 64% chlorine, what's the mass of chlorine?

so we have to rely on the "percent by mass" ratio a lot. if you don't know what it means, feel free to ask and use a simple example to illustrate your thinking.

Answer 3

okay thank you