Aluminum boils at 2467°C. Aluminum’s boiling point in Kelvin is 2194. True or False.
2 answers:
Answer:
The given statement is false.
Explanation:
Given that aluminum boils at 2,467°C
Boiling point of aluminum in kelvins is 2,194 K
Temperature in degree Celsius can be converted into Kelvins by relation:
So, boiling point of aluminium in Kelvins will be:
2,740 K ≠ 2,194 K
But the given value in Kelvins is not coming equal to our calculated value, Hence, the given statement is false.
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<u>Answer:</u> The concentration of at equilibrium is 0.00608 M
<u>Explanation:</u>
As, sulfuric acid is a strong acid. So, its first dissociation will easily be done as the first dissociation constant is higher than the second dissociation constant.
In the second dissociation, the ions will remain in equilibrium.
We are given:
Concentration of sulfuric acid = 0.025 M
Equation for the first dissociation of sulfuric acid:
0.025 0.025 0.025
Equation for the second dissociation of sulfuric acid:
<u>Initial:</u> 0.025 0.025
<u>At eqllm:</u> 0.025-x 0.025+x x
The expression of second equilibrium constant equation follows:
We know that:
Putting values in above equation, we get:
Neglecting the negative value of 'x', because concentration cannot be negative.
So, equilibrium concentration of sulfate ion = x = 0.00608 M
Hence, the concentration of at equilibrium is 0.00608 M