A is a solution of a monobasic acid hx , suspected to be hcl or hno3 containing 3.15g of the acid in 500cm^3 of solution . b is 0.100 moldm^3 naoh. 25.0 cm portion of b was titrated with a using methy orange as indicator . (i) calculate the concentration of A in moldm^3 (ii) calculate the molar mass of HX (iii) identify HX