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How much zinc is too much?

When zinc and hydrochloric acid react they form zinc chloride and hydrogen gas. how many liters of hydrogen ga?

  • Answer:

    Well first you need a balanced chemical equation for it Here's what I got: Zn+2 + 2HCl --> ZnCl2 + H2 So from this equation, you have to first find the mole ratio. molar mass of Zn is 65.39 g/mole 5.72 g Zn X 1 mole/65.39 g Zn grams cancel and you get 0.087475149 mole Zn The mole ratio of Zn to H2 is 1:1 1:1 0.087475149 mol Zn: 0.087475149 mol H2 Assuming that H2 is at STP (1 atm)(V) = (0.087475149 mole)(0.0821)(273 K) Solve for V I got 1.96 L

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Well first you need a balanced chemical equation for it Here's what I got: Zn+2 + 2HCl --> ZnCl2 + H2 So from this equation, you have to first find the mole ratio. molar mass of Zn is 65.39 g/mole 5.72 g Zn X 1 mole/65.39 g Zn grams cancel and you get 0.087475149 mole Zn The mole ratio of Zn to H2 is 1:1 1:1 0.087475149 mol Zn: 0.087475149 mol H2 Assuming that H2 is at STP (1 atm)(V) = (0.087475149 mole)(0.0821)(273 K) Solve for V I got 1.96 L

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