Answer:
B) 1.2 mol HCOOH is contained in 1 liter of solution
Explanation:
The physical meaning of "c(HCOOH) = 1.2 mol/L" is that 1.2 mol of formic acid (HCOOH) is contained in 1 liter of solution, so the correct answer is:
B) 1.2 mol HCOOH is contained in 1 liter of solution