Answer:
Explanation:
i dont know
Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column of the periodic .
Symbol: Mg
Atomic mass: 24.305 u
Electron configuration: [Ne] 3s2
Atomic number: 12
Melting point: 650 °C
Oxidation number: 2
Answer:
Then proper sequence is attached.
Explanation:
Show the proper sequence of synthetic transformations in the conversion of benzene to ethyl m-fluorophenyl ketone. Please give descriptions of each step and the reasoning behind it.
The proper sequence of synthetic transformations in the conversion of benzene to ethyl m-fluorophenyl ketone is attached.
Here is the full question
How many moles of sodium acetate must be added to 2.0 L of 0.10 M acetic acid to give a solution that has a pH equal to 5.00? Ignore the volume change due to the addition of sodium acetate. Ka of acetic acid is 1.7×10-5.
Answer:
0.3396 moles
Explanation:
pH = pKA + log
[acetic acid] = 0.1 M
pH = 5.0
=
5.0 = -log () + log
5.0 = 4.77 + log [acetate] + 1
5.0 = 5.77 + log [acetate]
- log [acetate] = 5.77 - 5.0
- log [acetate] = 0.77
log [acetate] = -0.77
[acetate] = log⁻¹ (-0.77)
[acetate] = 0.1698
∴ for 2L = 2 × 0.1698
= 0.3396 moles