HELP 30 Points !

Chemistry

2 answers:

Anestetic [448]2 years ago

8 0

2Na3(PO4)+ 3Cu(SO4) ➡️3Na2(SO4)+Cu3(PO4)2

Katarina [22]2 years ago

4 0

Answer:

The answer to your question is below

Explanation:

In a double displacement reaction, the cations interchange between the two reactants.

Na₃PO₄ + CuSO₄ ⇒ Na₂SO₄ + Cu₃(PO₄)₂

Now, we need to balance the equation

Na₃PO₄ + CuSO₄ ⇒ Na₂SO₄ + Cu₃(PO₄)₂

Reactants Elements Products

3 Na 2

1 P 2

1 Cu 1

1 S 1

8 O 12

This reaction is unbalanced so we need to balance it.

2Na₃PO₄ + 3CuSO₄ ⇒ 3Na₂SO₄ + Cu₃(PO₄)₂

Reactants Elements Products

6 Na 6

2 P 2

3 Cu 3

3 S 3

20 O 20

Now the equation is balanced

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2.38 to the nearest hundred

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Answer:

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2.00

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Explanation:

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2 years ago

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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:

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