Answered: You place an excess amount of Zinc into…

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter4: Reactions In Aqueous Solution

Section: Chapter Questions

Problem 78QAP: When 85.0 mL of 0.250 M Ba(OH)2 solution is added to 85.00 mL of 0.250 M Al (NO3)3 solution, a white...

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You place an excess amount of Zinc into 25 mL of 0.100 M Hydrochloric acid.

a) What is the balanced chemical reaction? [ Select ] ["Zn(s) + 2HClO4(aq) --> Zn(ClO4)2(aq) + H2(g)", "Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g)", "Zr(s) + 4HCl(aq) --> ZrCl4(aq) + 2H2(g)", "Zn(s) + 2HBr(aq) --> ZnBr2(aq) + H2(g)"]

b) How many moles of HCl are present in the flask? [ Select ] ["0.0025 mol", "0.25 mol", "2.5 mol", "0.005 mol"]

c) How many moles of hydrogen gas are expected to form? [ Select ] ["0.005 mol", "0.00125 mol", "0.0025 mol", "1.25 mol"]

d) How many liters of gas are expected to form at 23∘C, and 1.1atm [ Select ] ["0.030 L", "27.62 L", "0.0021 L", "0.28 L"]

Gas laws:

P₁V₁ = P₂V₂

V₁T₂ = V₂T₁

P₁V₁T₂ = P₂V₂T₁

V 1 n 1 = V 2 n 2

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