Answer to Question #245539 in General Chemistry for fiyinfoluwa

Question

1. B is a solution containing 5.30g of anhydrous sodium trioxocarbornate(IV) per DM³ . A solution of hydrochloric acid of unknown concentration put solution A into the burette and titrate 25cm³ portion of B with A using methyl orange as the indicator record the volume of your pipette.

Calculate the average volume of acid used from your results,calculate

(a) the concentration of solution B in mol DM³

(b) the concentration of solution A in mol DM³

(c) in solution A the equation of reaction is 2HCl + na2co3 > 2nacl+co2+h20

Answer 1

Rmm of sodium trioxocarbornate(IV) is 106

M=5.30÷106 = 0.05m/DM3