Answer to Question #245537 in General Chemistry for fiyinfoluwa

Question

1.  B is a solution containing 5.30g of anhydrous sodium trioxocarbonate(iv) per dm³ . A is a solution of hydrochloric acid known concentration. Put a solution A into the burette and titrate 25cm³ (or 20cm³) portion of B with A using methyl orange as indicator. Record the volume of your pipette.  (Tabulate your burette readings and calculate the average volume of acid used from your results.)

CACULATE:

(A)   The concentration of solution B in moles per dm³

(B)  The concentration of solution A in moles per dm³

(C)  The mass concentration in g per dm³ of the acid in solution A THE EQUATION OF REACTION IS = 2HCl + NaCo₃     -------->       2NaCl + Co₃ + H₂O

(H=1, C=12, O=16, Na=23, Cl=35.5

Burette Reading Rough Titre 1^st titre 2^nd titre

(cm3) (cm3) (cm3)

Finial 24. 55 48.85 24.30

Initial 0.10 24.55 0.00

Vol of acid used ? ? ?

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Answer 1

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