A 15% by mass solution has a density of 1.2 g/mL. What is the mass per liter concentration of this solution?
→ (a) 180 g/L (this is the answer, pretend you don't know)
(b) 150 g/L
(c) 125 g/L
(d) cannot be determined from this information
Possibly percent composition
The Attempt at a Solution
I don't know g/L.
I assume 15% of the solution is 15g (This is clearly not the case, or I wouldn't be here)
Convert mL to L
1200g/L <---Not even on the answer list, and sounds unreasonable anyway
Without straight telling me the answer, how does one approach a question such as this?