Answer:
The heat absorbed by the process is -1,634.27 J
Explanation:
Here, we have
Mass of KCl = 6.4 g
Mass of water = 42 g
Initial temperature of water = 20.60°C
Final temperature of the water = 11.30°C
Specific heat capacity of water = 4.184 J/g·°C
Based on the principle of conservation of energy, which states that energy can neither be created nor destroyed, but changes from one form to another, we have
The heat absorbed in the process is equal to the heat lost by the water present in the dissolution
Heat lost by water = ΔH = 42 × 4.184 × (11.3 - 20.6) = -1,634.2704 J
Heat lost by water = 1.63 kJ
∴ The heat absorbed by the process = -1,634.2704 J
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The best way to measure it usually is to use a beaker or graduated cylinder.
NaOH is a hygroscopic compound, which means that it has a very strong affinity for water. Moreover, NaOH is also a stronger base than acetic acid is a strong acid. These two properties of NaOH make it necessary for different precautions to be taken while preparing a solution.
On the other hand, acetic acid is not very reactive and may easily be prepared in a solution of unboiled water.
Answer:
Explanation:
Double Bond => An Alkene molecule
So, the suffix will be "-ene"
7 Carbons => So, we'll use the prefix "Hept-"
Combining the suffix and prefix, we get:
=> Heptene
