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  • Chlorine is prepared in the laboratory by treating manganese dioxide (MnO 2 ) with aqueous hydrochloric acid according to the reaction 4 HCl (aq) + MnO 2 (s) gives 2H 2 O (l) + MnCl 2 (aq) + Cl 2 (g) How many grams of HCl react with 5.0 g of

1.36    Chlorine is prepared in the laboratory by treating manganese dioxide (MnO2) with aqueous hydrochloric acid according to the reaction

         4 HCl (aq) + MnO_2 (s) \rightarrow 2H_2 O (l) + MnCl_2 (aq) + Cl_2 (g)

How many grams of HCl react with 5.0 g of manganese dioxide?

Answers (1)

best_answer

Molar mass of MnO_{2} is 55+32 g = 87g.

Here from the reaction 1 mole of MnO_{2} reacts with 4 moles of HCl,

i.e., 4\times36.5g =146g of HCl.

Therefore, 5.0 g of MnO_{2} will react with HCl:

= \frac{146}{87}\times5.0g = 8.40g.

 

Posted by

Divya Prakash Singh

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