B.1 Chlorine wants 8 Hydrogen has one to give 7 plus on is 8
In a solution, when the concentrations of a weak acid and its conjugate base are equal, the -log of the concentration of H+ and the -log of the Ka are equal.
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What is Henderson-Hasselbalch equation ?</h3>
- This formula is frequently used to determine the pH of buffer solutions. A weak acid and its conjugate base make up buffer solutions.
- To find the pH of the buffer solution, we obtain the pKa of the weak acid and add it to the log of the concentration of the conjugate base divided by the concentration of weak acid.
- So whenever the concentration of the weak acid is equal to the concentration of the conjugate base, the pH of the buffer solution is equal to the pKa of the weak acid.
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To know more about buffer solutions you can refer to the link below:
brainly.com/question/10695579
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Answer:
number of moles of water (n) = 1.383 x10 ⁻⁵ mol
Explanation:
Data Given:
No. of molecules of water = 8.33×10¹⁸
No. of Mole of water = ?
Formula Used to calculate
no. of moles = numbers of particles (ions, molecules, atoms) /Avogadro's number
Avogadro's no. = 6.023 x10²³
So the formula could be written as
no. of moles (n) = no. of molecules of water /6.023 x10²³
Put the values in above formula
no. of moles (n) = 8.33×10¹⁸ /6.023 x10²³
no. of moles (n) = 8.33×10¹⁸ /6.023 x10²³
no. of moles (n) = 1.383 x10 ⁻⁵
so 1.383 x10 ⁻⁵ moles of water are represented by 8.33×10¹⁸ molecules of water.
Level 3 is the correct answer
