AP EAMCET202017 Sep 2020Morning ShiftChemistrySome Basic Concepts of ChemistryActual
A (40 % HCl ) solution has density (1.2 ~g ~mL ⁻¹ ). The molarity of the solution is nearly ____
Options
- A(11 M )
- B(12 M )
- C(13 M )
- D(14 M )
Correct answer
C. (13 M )
Step-by-step solution
As, density (d) of ( HCl ) solution is given ((p c) ) ( (1.2 ~g ~mL ⁻¹ ) ), the percentage strength of the solution ((40 %) ) is of ((w / w) ) type. ( aligned Molarity & = p c(w / w) d ( ~g ~mL ⁻¹ ) 10 M_ HCl & = 40 1.2 10 36.5 =13.15 13 M aligned )