Respuesta :

Answer:

Explanation:

i) Red as Methyl orange shows red color in acidic medium and hyrdochloric acid is acidic.

ii) In 10cm^3 of 0.100 mole/dm^3 of hydrochloric acid, there are:

10/1000*0.1 = 1.00x10^(-3) moles of hydrochloric acid were used.