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Darina [25.2K]
2 years ago
11

Which type of solution is one with a PH of 8?

Chemistry
1 answer:
Tju [1.3M]2 years ago
4 0
Good Morning! The pH classification line (potential of hydrogen) starts at 0 and ends at 14. Solutions that have a pH below 7 (which is the neutral), have more acidic characteristics. Solutions, on the other hand, that have their hydrogen potential greater than 7, have basic aspects. A substance with pH 8, therefore, has a basic <span>characteristic. Hugs!</span>
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A large balloon contains 5400 m3 of He gas that is kept at a temperature of 280 K and an absolute pressure of 1.10 x 105 Pa. Fin
patriot [66]

Answer:

1.02 × 10⁶ g

Explanation:

Step 1: Given data

  • Volume of the balloon (V): 5400 m³
  • Temperature (T): 280 K
  • Absolute pressure (P): 1.10 × 10⁵ Pa
  • Molar mass of He (M): 4.002 g/mol

Step 2: Convert "V" to L

We will use the conversion factor 1 m³ = 1000 L.

5400 m³ × 1000 L/1 m³ = 5.400 × 10⁶ L

Step 3: Convert "P" to atm

We will use the conversion factor 1 atm = 101325 Pa.

1.10 × 10⁵ Pa × 1 atm / 101325 Pa = 1.09 atm

Step 4: Calculate the moles of He (n)

We will use the ideal gas equation.

P × V = n × R × T

n = P × V / R × T

n = 1.09 atm × 5.400 × 10⁶ L / 0.08206 atm.L/mol.K × 280 K

n = 2.56 × 10⁵ mol

Step 5: Calculate the mass of He (m)

We will use the following expression.

m = n × M

m = 2.56 × 10⁵ mol × 4.002 g/mol

m = 1.02 × 10⁶ g

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2 years ago
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spayn [35]

Answer:

Cells are considered the fundamental units of life. The cells in complex multicellular organisms like people are organized into tissues, groups of similar cells that work together on a specific task. ... At each level of organization—cells, tissues, organs, and organ systems—structure is closely related to function.

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Rzqust [24]

Answer:

A:temperature

Explanation:

The temperature cannot be determined by looking at the spectra of the star due to lack of the equipment for its measurement. <em>On the other-hand, the remaining statements like the distance from earth, movement towards or away from earth can be determined.</em>

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Lavoisier is known as the “Father of Modern Chemistry” or the “Father of Chemistry”.

He is famous for isolating oxygen and establishing the law of conservation of mass.
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Anastasy [175]

Answer:

Answer choice B. 2

Explanation:

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