The concentration of the solution is 8 M
calculation
Concentration = moles/volume in liters
step 1: find moles of HF
moles of HF =mass/molar mass
molar mass of HF = 1+ 19 )= 20 g/mol
moles is therefore = 32.0 g/ 20 g/mol= 1.6 moles
Step 2: convert ml to L
volume in liters = 2.0 x 10^2 / 1000 =0.2 l
step 3: find the concentration
concentration = 1.6 mol / 0.2 l = 8 M
