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kramer
3 years ago
11

Write the formula for the conjugate acid of each of the following bases. 1. NH₃

Chemistry
1 answer:
tino4ka555 [31]3 years ago
8 0

Answer:

According to Bronsted-Lowry theory, an<u> acid</u> is any species that can<em> donate</em> H+ (proton), while a<u> base</u> is any species that can<em> accept</em> a H+ ion.

  1. NH_{3}  

                          NH_{3}(aq) + H_{2}O(aq) → NH_{4}^{+}(aq)+ OH^{-}(aq)

NH_{4}^{+} is the conjugate acid of NH_{3}

      2. ClO_{3}^{-}

                           ClO_{3}^{-}(aq) + H_{2}O(aq) → HClO_{3}(aq) + OH^{-}(aq)

HClO_{3} is the conjugate acid of ClO_{3}^{-}

       3. SO_{4}^{2-}

                             SO_{4}^{2-}(aq) + H_{2}O(aq) → HSO_{4}^{-}(aq) + OH^{-}(aq)

HSO_{4}^{-} is the conjugate acid of  SO_{4}^{2-}  

         4. OH^{-}

                              OH^{-}(aq) + H^{+}(aq) → H_{2}O(aq)

H_{2}O is the conjugate acid of OH^{-}

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Answer:

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2 years ago
Rank the following fertilizers in decreasing order of mass percentage of nitrogen:
charle [14.2K]
<h3>Answer:</h3>

        NH₃ > NH₄NO₃ > (NH₄)₂HPO₄ > (NH₄)₂SO₄ > KNO₃ > (NH₄)H₂PO₄

<h3>Soution:</h3>

In (NH₄)₂HPO₄:

Mass of Nitrogen  =  N × 2  =  14 × 2  =  28 g.mol⁻¹

Molar Mass of (NH₄)₂HPO₄  =  132.06 g.mol⁻¹

Mass %age  =  Mass of N / M.Mass of (NH₄)₂HPO₄ × 100

Mass %age  =  28 g.mol⁻¹ / 132.06 g.mol⁻¹ × 100

Mass %age  =  21.20 %

In (NH₄)₂SO₄:

Mass of Nitrogen  =  N × 2  =  14 × 2  =  28 g.mol⁻¹

Molar Mass of (NH₄)₂SO₄  =  132.14 g.mol⁻¹

Mass %age  =  Mass of N / M.Mass of (NH₄)₂SO₄ × 100

Mass %age  =  28 g.mol⁻¹ / 132.14 g.mol⁻¹ × 100

Mass %age  =  21.18 %

In KNO₃:

Mass of Nitrogen  =  N × 1  =  14 × 1  =  14 g.mol⁻¹

Molar Mass of KNO₃  =  101.10 g.mol⁻¹

Mass %age  =  Mass of N / M.Mass of KNO₃ × 100

Mass %age  =  14 g.mol⁻¹ / 101.10 g.mol⁻¹ × 100

Mass %age  =  13.84 %

In (NH₄)H₂PO₄:

Mass of Nitrogen  =  N × 1  =  14 × 1  =  14 g.mol⁻¹

Molar Mass of (NH₄)H₂PO₄  =  115.03 g.mol⁻¹

Mass %age  =  Mass of N / M.Mass of (NH₄)H₂PO₄ × 100

Mass %age  =  14 g.mol⁻¹ / 115.03 g.mol⁻¹ × 100

Mass %age  =  12.17 %

In NH₃:

Mass of Nitrogen  =  N × 1  =  14 × 1  =  14 g.mol⁻¹

Molar Mass of NH₃  =  132.14 g.mol⁻¹

Mass %age  =  Mass of N / M.Mass of NH₃ × 100

Mass %age  =  14 g.mol⁻¹ / 17.03 g.mol⁻¹ × 100

Mass %age  =  82.20 %

In NH₄NO₃:

Mass of Nitrogen  =  N × 2  =  14 × 2  =  28 g.mol⁻¹

Molar Mass of NH₄NO₃  =  80.04 g.mol⁻¹

Mass %age  =  Mass of N / M.Mass of NH₄NO₃ × 100

Mass %age  =  28 g.mol⁻¹ / 80.04 g.mol⁻¹ × 100

Mass %age  =  34.98 %

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3 years ago
Why is the combined cycle power generation system so much more efficient that the straight steam cycle?
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Answer:

  Because it uses the residual energy of the fluid used by the first engine.

Explanation:

  A combined cycle power generation counts with two heat engines that work in tandem from the same source of heat. The engines turn the energy into mechanical energy.

  The cycle is much more efficient than the other, almost 60% more.

  I hope this answer helps you.

8 0
3 years ago
5x^2 + 3×^2-x+7x<br>Help plz​
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Answer:

5x^2 + 3x^2 -x +7x

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factorize it to get

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Calculate the mass (in grams) of 8.56 moles of sulfur.
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Answer:

275g

Explanation:

Depending on the molar mass you are given, you can use that to solve this.

(I'm going based on my science class' molar mass of sulphur being 32.07g/mol)

Starting off, the formula for finding moles is

n=m/M (moles = mass / molar mass)

We can manipulate this equation to solve for mass.

m=Mn

now fill in what we now.

m = 32.07*8.56

mass = 274.5192

Now round for significant digits (if you are needed to do)

mass = 275g

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3 years ago
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