In the laboratory,hydrogen gas is usually made by the following reaction: Zn(s) + 2 HCl(aq) → H₂(g) + ZnCl₂(aq)
How many liters of H₂ gas,collected over water at an atmospheric pressure of 752 mm Hg and a temperature of 21.0°C,can be made from 2.566 g of Zn and excess HCl? The partial pressure of water vapor is 18.65 mm Hg at 21.0°C.

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The Answer of In the laboratory,hydrogen gas is usually made by the following reaction: Zn(s)+ 2 HCl(aq)→ H₂(g)+ ZnCl₂(aq) How many liters of H₂ gas,collected over water at an atmospheric pressure of 752 mm Hg and a temperature of 21.0°C,can be made from 2.566 g of Zn and excess HCl? The partial pressure of water vapor is 18.65 mm Hg at 21.0°C. A)0.0701 L B)0.939 L C)0.959 L D)0.981 L

In the Laboratory,hydrogen Gas Is Usually Made by the Following