Answer:
Here's what I get.
Explanation:
An acid is a proton donor; a base is a proton acceptor.
Thus, HF is the acid and H₂O is the base.
The conjugate base is what's left after the acid has given up its proton.
The conjugate acid is what's formed when the base has accepted a proton.
HF/F⁻ make one conjugate acid/base pair, and H₂O/H₃O⁺ are the other conjugate acid/base pair.
Answer: Yes, it is possible for each samples to contain 1 mole of a substance because the number of moles are not dependent on the mass or the volume.
Explanation:
The formula for the number of moles is given by:
As, the masses of 2 samples are different, so the number of moles will be dependent only on the molar masses of the samples.
Volume has no effect on the number of moles.
PH = -log[H⁺]
2,32 = -log[H⁺]
[H⁺] = 10^-2,32
<u>[H⁺] = 0,0047863 mol/dm³
</u>_____
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Answer:
The following reaction will occur at cathode:
Explanation:
The two half reaction during electrolysis of aqueous nickel sulfate will be
a) anode reaction :
Water will undergo oxidation and will evolve oxygen gas at anode as shown in the given reaction:
b) Cathode reaction: The reduction of Nickel ion will occur by gain of two electrons as shown in the given equation:
Thus the overall reaction will be:
Answer:
4.00 M = moles of solute. 12.0 L.
Explanation: