7. What is the molar concentration of HNO3 (63.0 g/mol) in a solution that has aspecific gravity of 1.42 and is 70.5% HNO3 (w/w). (3%)(A) 11.2 M(B) 1.49 M(C) 0.79 M(D) 15.9 M(E) None of the above.