Is thiamine mononitrate an ionic bond or covalent bond?
2 answers:
Answer:
It's a <u>covalent bond</u>
Explanation:
The diference of electronegativity between the two atoms bonding can help you to decide if a bond is either <u>covalent</u> or <u>ionic</u>.
As shown in the figure, the oxygen atoms of the nitrate (left) will interact with the nitrogen atom of the thiamine(right).
The oxygen have an electronegativity of 3.5 (one of the most electronegative elements) and the nitrogen a 3.0
Being the difference: 3.5 - 3.0=0.5
Now, how this helps to decide the type of bond? For covalent bonds it's expected to have a electronegativity diffetence of < 1.5. On the other hand, for ionic bonds this value should be > 1.5
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Answer: It takes 193000 seconds to plate out exactly 1.00 mol of nickel metal, assuming 100 percent current efficiency.
Explanation:
1 electron carry charge=
1 mole of electrons contain= electrons
Thus 1 mole of electrons carry charge=
of electricity deposits 1.00 mole of nickel
where Q= quantity of electricity in coloumbs = 193000 C
I = current in amperes = 1.00 A
t= time in seconds = ?
Thus it takes 193000 seconds to plate out exactly 1.00 mol of nickel metal, assuming 100 percent current efficiency.