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Setler79 [48]
2 years ago
7

Explain why “advancing water contact angles are more sensitive to the hydrophobic property of a surface whereas receding water c

ontact angles are more sensitive to the hydrophilic property of a surface”.
Chemistry
1 answer:
timama [110]2 years ago
7 0

Answer: Surface tension has a more complicated effect on capillary pressure: on the one hand, capillary pressure is directly proportional to surface tension. High surface tension liquids, on the other hand, typically have higher contact angles, which lowers capillary pressure.

Explanation: Does this help??

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Answer:

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3 years ago
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8306.76

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6 0
3 years ago
what is the concentration of an NaOH solution that requires 50 mL of a 1.25 M H2SO4 solution to neutralize 78.0 ml of NaOH​
Dimas [21]

Answer:

  • The answer is the concentration of an NaOH = 1.6 M

Explanation:

The most common way to solve this kind of problem is to use the formula  

  • C₁ * V₁ = C₂ * V₂

In your problem,

For NaOH

C₁ =??     v₁= 78.0 mL = 0.078 L

For H₂SO₄

C₁ =1.25 M     v₁= 50.0 mL = 0.05 L

but you must note that for the reaction of NaOH with H₂SO₄

2 mol of NaOH raect with 1 mol H₂SO₄

So, by applying in above formula

  • C₁ * V₁ = 2 * C₂ * V₂
  • (C₁ * 0.078 L) = (2*  1.25 M * 0.05 L)
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<u>So, the answer is the concentration of an NaOH = 1.6 M</u>

3 0
3 years ago
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