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timurjin [86]
3 years ago
14

What is the pH of a solution with a concentration of 3.6 × 10-5 molar H3O+? Show, or explain, the work used to solve this proble

m.
Chemistry
2 answers:
Luden [163]3 years ago
7 0

Answer:

pH = 4.45

Explanation:

pH is negative logarithm of the hydrogen ion concentration.  

Given, hydronium ion concentration = 3.6 x 10⁻⁵

pH = - log[H₃O⁺] = - log(3.6 x 10⁻⁵) = 4.45

A pH below 7.0 means the solution is acidic. Neutral pH is at 7.0. For pH above 7.0 the solution is basic.  

lora16 [44]3 years ago
6 0

Answer:

pH = 4.44

Explanation:

You take the negative logarithm of the hydronium ion concentration.

pH = -log[H₃O⁺] = -log(3.6 × 10⁻⁵) = 4.44


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Answer:

percentage dissociation of trimethylacetic acid in a 0.57M  aqueous solution = 0.40%

Explanation:

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Which is a problem associated with the use of trees for biomass? I. Potential deforestation II. Burning fossil carbon III. Poten
BigorU [14]

Answer:

Both Option (I) and Option (III)

Explanation:

Biomass is usually defined as those organic molecules that are obtained from plants and animals, in order to produce energy. It is a renewable resource. Some of the examples of biomass include wood, crop, animal fossil fuel.

A large number of trees are being cut down to construct these biomass energies such as woods. This results in the deforestation process where the forested areas are converted into empty dry soils. This results in the increasing rate of erosion because the prevailing wind and flowing water can easily carry away the topsoil and loses the fertility of the soil.

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7 0
3 years ago
Which statement describes the energy changes that occur as bonds are broken and formed during a chemical reaction? 1.Energy is a
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C

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Br + Br-> Br2 (covalent bond)

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6 0
3 years ago
How much force is needed to accelerate a 66 kg skier at 2 m/sec2
alexgriva [62]

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3 years ago
What is the percent composition of carbon in heptane c7h16
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Answer: the percent composition of carbon in heptane is 83.9%

Explanation:

<u>1) Atomic masses of the atoms:</u>

  • C: 12.01 g/mol
  • H: 1.008 g/mol

<u>2) Molar mass of heptane:</u>

  • C₇H₁₆: 7 × 12.01 g/mol + 16×1.008 g/mol = 100.2 g/mol

<u>3) Mass of carbon in one mole of heptane:</u>

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<u>3) Percent composition of carbon:</u>

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           = (84.07 g/ 100.2 g) × 100 = 83.9% ← answer

8 0
3 years ago
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