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Anarel [89]
4 years ago
5

The average cup of coffee contains about 125 mg of caffeine, C3H10N402. Caffeine is also found in tea, colas, and headache remed

ies.
How many atoms of hydrogen are in 1.0 mol of caffeine?
Chemistry
1 answer:
slavikrds [6]4 years ago
8 0

Answer:

ten atoms of hydrogen are present in one mole of caffeine.

Explanation:

Molecular formula of caffiene is given which is C3H10N4O2. It clearly shows that ten atoms of hydrogen are present. One mole is amount equal to one molecular weight of a molecule which is derived from molecular formula. So as moecular formula has ten atoms of hydrogen, one mole of caffeine has 10 atoms of hydrogen.

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The ka of hypochlorous acid (hclo) is 3.0 x 10-8 at . what is the % ionization of hypochlorous acid in a 0.015 m aqueous solutio
Ahat [919]

Answer is: the % ionization of hypochlorous acid is 0.14.

Balanced chemical reaction (dissociation) of an aqueous solution of hypochlorous acid:

HClO(aq) ⇄ H⁺(aq) + ClO⁻(aq).

Ka = [H⁺] · [ClO⁻] / [HClO].

[H⁺] is equilibrium concentration of hydrogen cations or protons.

[ClO⁻] is equilibrium concentration of hypochlorite anions.

[HClO] is equilibrium concentration  of hypochlorous acid.

Ka is the acid dissociation constant.

Ka(HClO) = 3.0·10⁻⁸.

c(HClO) = 0.015 M.

Ka(HClO) = α² · c(HClO).

α = √(3.0·10⁻⁸ ÷ 0.015).

α = 0.0014 · 100% = 0.14%.

5 0
3 years ago
Which functional group is within the compound shown below?
mamaluj [8]

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A. Amino

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Explanation:

B. Ester is R-CO-OR

example nitroglycerin

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example ethanol

D. Carbonyl R-(C=O)-R

examples formaldehyde

4 0
2 years ago
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Explanation:

but hope this helps

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