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Author Question: Zinc dissolves in hydrochloric acid to yield hydrogen gas: Zn(s) + 2HCl(aq) ZnCl2(aq) + ... (Read 18 times)

effaey

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Question 1

Zinc dissolves in hydrochloric acid to yield hydrogen gas:
         Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
What mass of hydrogen gas is produced when a 7.35 g chunk of zinc dissolves in 500.  mL of 1.200M HCl?
◦ 0.605 g
◦ 0.113 g
◦ 0.302 g
◦ 0.453 g
◦ 0.227 g

Question 2

Zinc dissolves in hydrochloric acid to yield hydrogen gas:
         Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)
When a 12.7 g chunk of zinc dissolves in 500. mL of 1.450M HCl, what is the  concentration of hydrogen ions remaining in the final solution?
◦ 0.776 M
◦ 0.388 M
◦ 0.674 M
◦ 1.06 M
◦ 0 M


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Marked as best answer by effaey on Nov 5, 2023

gwisel

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effaey

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Reply 2 on: Nov 5, 2023
Excellent


fatboyy09

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Reply 3 on: Yesterday
:D TYSM

 

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