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CHE1501 ASSIGNMENT 2 2022
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- University Of South Africa (Unisa)
This document contains CHE1501 ASSIGNMENT 2 2022 solutions. Clearly step by step calculations and explanations are provided
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CHE1501ASSIGNMENT 2
SEMESTER 1
2022
,Solution:
ANSWER:[3]
Solution:
𝐵𝑎𝑙𝑎𝑛𝑐𝑒𝑑 𝑐ℎ𝑒𝑚𝑖𝑐𝑎𝑙 𝑒𝑞𝑢𝑎𝑡𝑖𝑜𝑛:
2𝐻𝑁𝑂3 (𝑎𝑞) + 𝐶𝑢(𝑂𝐻)2 (𝑠) → 𝐶𝑢(𝑁𝑂3 )2 (𝑎𝑞) + 2𝐻2 𝑂 (𝑙)
𝑁𝑖𝑡𝑟𝑖𝑐 𝑎𝑐𝑖𝑑 𝑖𝑠 𝑠𝑜𝑙𝑢𝑏𝑙𝑒 𝑖𝑛 𝑤𝑎𝑡𝑒𝑟, 𝑡ℎ𝑒𝑟𝑒𝑓𝑜𝑟𝑒
𝐻𝑁𝑂3 → 𝐻 + (𝑎𝑞) + 𝑁𝑂3 − (𝑎𝑞)
𝐶𝑢(𝑂𝐻)2 (𝑠) 𝑖𝑠 𝑖𝑛𝑠𝑜𝑙𝑢𝑏𝑙𝑒
𝐶𝑢(𝑁𝑂3 )2 (𝑎𝑞) 𝑖𝑠 𝑠𝑜𝑙𝑢𝑏𝑙𝑒
𝐶𝑢(𝑁𝑂3 )2 (𝑎𝑞) → 𝐶𝑢2+ (𝑎𝑞) + 𝑁𝑂3 − (𝑎𝑞)
, 2𝐻𝑁𝑂3 (𝑎𝑞) + 𝐶𝑢(𝑂𝐻)2 (𝑠) → 𝐶𝑢(𝑁𝑂3 )2 (𝑎𝑞) + 2𝐻2 𝑂 (𝑙)
𝐻 + (𝑎𝑞) + 𝑁𝑂3 − (𝑎𝑞) + 𝐶𝑢(𝑂𝐻)2 (𝑠) → 𝐶𝑢2+ (𝑎𝑞) + 𝑁𝑂3 − (𝑎𝑞) + 2𝐻2 𝑂 (𝑙)
𝑁𝑒𝑡 𝑖𝑜𝑛𝑖𝑐 𝑒𝑞𝑢𝑎𝑡𝑖𝑜𝑛:
𝐻 + (𝑎𝑞) + 𝐶𝑢(𝑂𝐻)2 (𝑠) → 𝐶𝑢2+ (𝑎𝑞) + 2𝐻2 𝑂 (𝑙)
ANSWER:[2]
Solution:
𝑋 𝑤𝑎𝑠 𝑟𝑒𝑑𝑢𝑐𝑒𝑑, ℎ𝑒𝑛𝑐𝑒 𝑖𝑡 𝑎𝑐𝑡𝑠 𝑎𝑠 𝑎 𝑜𝑥𝑖𝑑𝑖𝑧𝑖𝑛𝑔 𝑎𝑔𝑒𝑛𝑡
ANSWER:[5]
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