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Author Question: Zinc dissolves in hydrochloric acid to yield hydrogen gas: Zn(s) + 2HCl(aq) ZnCl2(aq) + ... (Read 127 times)

effaey

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on: Nov 5, 2023

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
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by effaey on Nov 5, 2023

gwisel

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Reply #1 on: Nov 5, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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effaey

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Reply 2 on: Nov 5, 2023
Gracias!

softEldritch

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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