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What is the acid dissociation constant, Ka of the 0.150 mol dm–3 solution of weak acid HA with pH of 2.34?

First, It would be useful to write the equation for the dissociation of the weak acid HA, which is HA <--> H + + A - . Then, write the Ka expression of the weak acid HA, which is [H + ][A - ]/[HA]. We ...
VS
Answered by Venus S. • Chemistry tutor
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Can you explain Le Chatelier's Principle?

Le Chatelier's principle: If the external condition is changed, the equilibrium will shift to oppose this change. What are these external conditions that can be changed? Temperature, pressure and concentrati...
DN
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Draw and label a tetrahedral shape

4 bondsangles are 109.5 degrees
MY
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Write down the electronic configuration of a copper ion in this complex ion: [Cu(H2O)6]2+

The electronic configuration is 1s2,2s2,2p6,3s2,3p6,3d9 (or [Ar]3d9); as the electronic configuration of the neutral copper is [Ar]3d10,4s1, which is unusual and differs from most transition metal ions.
MF
Answered by Mikael F. • Chemistry tutor
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Explain why ethanol has a higher boiling point than ethene (3)

I would recommend drawing both molecules to identify the key functional groups and relative sizes of the two molecules before attempting to write an answer. Answer: Ethanol molecules have hydrogen bonding in...
EF
Answered by Edward F. • Chemistry tutor
5903 Views