Yellowish-green gas chlorine `(Cl_(2))` can be prepared in the laboratory by heating hydrochloric acid `(HCl, aq)` with pyrolusinte (manganese dioxide, `MnO_(2)`): `4Cl(aq.) + MnO_(2)(s) rarr Cl_(2)(g) + 2H_(2)O(l) + MnCl_(2)(aq.)`. How many grams of `HCl` reacts with `5.00g` of manganses dioxide?A. `4.80g HCl`B. `8.40g HCl`C. `6.95g HCl`D. `5.69g HCl`

Yellowish-green gas chlorine `(Cl_(2))` can be prepared in the laborat

1.	Yellowish-green gas chlorine `(Cl_(2))` can be prepared in the laboratory by heating hydrochloric acid `(HCl, aq)` with pyrolusinte (manganese dioxide, `MnO_(2)`): `4Cl(aq.) + MnO_(2)(s) rarr Cl_(2)(g) + 2H_(2)O(l) + MnCl_(2)(aq.)`. How many grams of `HCl` reacts with `5.00g` of manganses dioxide?A. `4.80g HCl`B. `8.40g HCl`C. `6.95g HCl`D. `5.69g HCl`
Answer» Correct Answer - B `g_(MnO_(2)) rarr n_(MnO_(2)) rarr n_(HCl) rarr g_(HCl)` `5.00 g_(MnO_(2)) xx (1 mol MnO_(2))/(86.9g MnO_(2)) xx (4 mol HCl)/(1 mol MnO_(2))` `xx (36.5g HCl)/(1 mol HCl)` `= 8.40g HCl`

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