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CHE1501 ASSIGNMENT 3 2021

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Course CHE1501 - General Chemistry IA
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This document contains solution for CHE1503 ASSIGNMENT 3 2021.All step by step workings are shown clearly and explanations are provided.

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CHE1501
ASSIGNMENT 3 2021


QUESTION 1

𝐴𝑡 𝑒𝑞𝑢𝑖𝑙𝑖𝑏𝑟𝑖𝑢𝑚 𝑡ℎ𝑒 𝑟𝑎𝑡𝑒 𝑜𝑓 𝑓𝑜𝑟𝑤𝑎𝑟𝑑 𝑟𝑒𝑎𝑐𝑡𝑖𝑜𝑛𝑠 𝑖𝑠 𝑒𝑞𝑢𝑎𝑙 𝑡𝑜 𝑡ℎ𝑒 𝑟𝑎𝑡𝑒 𝑜𝑓 𝑡ℎ𝑒 𝑟𝑒𝑣𝑒𝑟𝑠𝑒 𝑟𝑒𝑎𝑐𝑡𝑖𝑜𝑛.



ANSWER:[4]




QUESTION 2

3𝑁𝑂 (𝑔) ⇆ 𝑁2 𝑂 (𝑔) + 𝑁𝑂2 (𝑔)

[𝑁2 𝑂 ][ 𝑁𝑂2 ]
𝐾𝑐 =
[𝑁𝑂 ]3



ANSWER:[1]




QUESTION 3

𝐻𝐹 (𝑎𝑞) ⇆ 𝐻+ (𝑔) + 𝐹− (𝑔)

[𝐻 + ][𝐹 − ]
𝐾𝑐 =
[[𝐻𝐹]]

𝑊ℎ𝑒𝑛 𝐻 + 𝑎𝑛𝑑 𝐹 − 𝑎𝑟𝑒 𝑝𝑟𝑒𝑑𝑜𝑚𝑖𝑛𝑎𝑡𝑒 𝑡ℎ𝑒𝑛 𝐾𝑐 𝑖𝑠 𝑣𝑒𝑟𝑦 𝑙𝑎𝑟𝑔𝑒

ANSWER:[4]

, QUESTION 4

𝑊ℎ𝑒𝑛 𝑎 𝑟𝑒𝑎𝑐𝑡𝑖𝑜𝑛 𝑖𝑛𝑣𝑜𝑙𝑣𝑒𝑠 𝑎 𝑠𝑜𝑙𝑖𝑑 , 𝑡ℎ𝑒 𝑠𝑜𝑙𝑖𝑑 𝑝ℎ𝑎𝑠𝑒 𝑠𝑢𝑏𝑠𝑡𝑎𝑛𝑐𝑒 𝑖𝑠 𝑛𝑜𝑡 𝑖𝑛𝑣𝑜𝑙𝑒𝑑 𝑖𝑛 𝑡ℎ𝑒 𝑒𝑞𝑢𝑖𝑙𝑖𝑏𝑟𝑖𝑢𝑚

𝑐𝑜𝑛𝑠𝑡𝑎𝑛𝑡 𝑒𝑥𝑝𝑟𝑒𝑠𝑠𝑖𝑜𝑛.

𝑁𝑖(𝐶𝑂)4 (𝑔) ⇆ 𝑁𝑖 (𝑠) + 4𝐶𝑂 (𝑔)


[𝐶𝑂]4
𝐾𝑐 =
[𝑁𝑖(𝐶𝑂)4 ]



ANSWER:[3]




QUESTION 5

ANSWER:[2]




QUESTION 6

𝑊ℎ𝑒𝑛 𝐻2 𝑂 𝑖𝑠 𝑟𝑒𝑚𝑜𝑣𝑒𝑑 𝑡ℎ𝑒 𝑠𝑦𝑠𝑡𝑒𝑚 𝑤𝑖𝑙𝑙 𝑝𝑟𝑜𝑑𝑢𝑐𝑒 𝑚𝑜𝑟𝑒 𝐻2 𝑂. 𝑇ℎ𝑒 𝑒𝑞𝑢𝑖𝑙𝑖𝑏𝑟𝑢𝑖𝑚 𝑤𝑖𝑙𝑙 𝑚𝑜𝑣𝑒 𝑡𝑜 𝑡ℎ𝑒

𝑙𝑒𝑓𝑡.



ANSWER:[1]




QUESTION 7

𝑊ℎ𝑒𝑛 𝑡𝑒𝑚𝑝𝑒𝑟𝑎𝑡𝑢𝑟𝑒 𝑖𝑠 𝑖𝑛𝑐𝑟𝑒𝑎𝑠𝑒𝑑 ℎ𝑒𝑎𝑡 𝑖𝑠 𝑏𝑒𝑖𝑛𝑔 𝑎𝑑𝑑𝑒𝑑 𝑡𝑜 𝑡ℎ𝑒 𝑠𝑦𝑠𝑡𝑒𝑚 𝑎𝑛𝑑 𝑡ℎ𝑒 𝑠𝑦𝑠𝑡𝑒𝑚 𝑤𝑖𝑙𝑙 𝑟𝑒𝑚𝑜𝑣𝑒 𝑡ℎ𝑒

ℎ𝑒𝑎𝑡 𝑏𝑦 𝑓𝑎𝑣𝑜𝑢𝑟𝑖𝑛𝑔 𝑡ℎ𝑒 𝑒𝑛𝑑𝑜𝑡ℎ𝑒𝑟𝑚𝑖𝑐 𝑟𝑒𝑎𝑐𝑡𝑖𝑜𝑛. 𝑇ℎ𝑒 𝑒𝑞𝑢𝑖𝑙𝑖𝑏𝑟𝑖𝑢𝑚 𝑤𝑖𝑙𝑙 𝑚𝑜𝑣𝑒 𝑡𝑜 𝑡ℎ𝑒 𝑟𝑖𝑔ℎ𝑡.

ANSWER:[4]

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