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Chemistry

2 answers:

miv72 [106K]3 years ago

7 0

It would be “To obey the law of conservation of mass”

dalvyx [7]3 years ago

6 0

Option D, to obey the conservation of mass.

The conservation of mass essentially states that all the atoms in a chemical reaction will still be there once the chemical reaction is complete.
Because of this, you have to balance chemical equations in order to ensure that there isn't a surplus or deficit of atoms on either side.

-T.B.

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Use the Henderson-Hasselbalch equation and your knowledge of ionization to help you answer this question. Aspirin is a weak acid

Leya [2.2K]

Answer:

The protonated form is predominant when aspirin is absorbed more readily. The ratio of conjugate base to acid is 1 to 100.

Explanation:

Aspirin is more readily absorbed when it is protonated, that is when pH is lower than pKa (more H⁺ available in the medium). We can confirm this using Henderson-Hasselbalch equation for pH = 1.5:

$pH = pKa +log(\frac{conjugate base}{weak acid} )\\1.5=3.5 +log(\frac{conjugate base}{weak acid} )\\-2.0=log(\frac{conjugate base}{weak acid} )\\10^{-2.0} =\frac{conjugate base}{weak acid}\\\frac{conjugate base}{weak acid}=0.01=\frac{1}{100}$

When aspirin is absorbed more readily the ratio of conjugate base to acid is 1 to 100, being the acid the predominant form.

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3 years ago

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Ierofanga [76]

To determine the strength of potassium permanganate with a standard solution of oxalic acid.

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2 years ago

Kitty [74]

Answer:

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Explanation:

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2 years ago

Molecule: Br2 and Br2. Is it polar or nonpolar?

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This combination in non polar.

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Mariulka [41]

Answer:

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3 years ago