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Chlorine is prepared in the laboratory b...

Chlorine is prepared in the laboratory by treating manganese dioxide `(MnO_2)` with aqueous hydrochloric acid according to the reaction
` 4HCl_((aq)) +MnO_(2(s)) to 2H_2 O_((l)) +MnCl_(2(aq)) +Cl_(2 (g))`
How many grams of HCl will react with 5.0 g of manganese dioxide?

A

6.4 g HCI

B

4.8 g HCI

C

8.4 g HCI

D

7.2 g HCl

Text Solution

Verified by Experts

The correct Answer is:
C
` underset(36.5 xx 4 = 146 g)( 4HCl) + underset(86.9 ) ( MnO_2) to 2 H_2 O + MnCl_2 + Cl_2`
` 86.9 ` g of ` MnO_2 ` reacts with ` HCl` =146 g
then ` 5.0 ` g will react with ` ( 146 )/( 86.9 ) xx 5.0 = 8.4 g`
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