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Alenkasestr [34]
3 years ago
7

1. When a mechanical wave, such as sound, reflects off a surface, what can the

Chemistry
1 answer:
oksano4ka [1.4K]3 years ago
4 0
That the surface is very shiny
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A buffered solution containing dissolved aniline, C6H5NH2, and aniline hydrochloride, C6H5NH3Cl, has a pH of 5.57 . A. Determine
vlada-n [284]

Answer:

[C₆H₅NH₃⁺] = 0.0399 M

Explanation:

This excersise can be easily solved by the Henderson Hasselbach equation

C₆H₅NH₃Cl → C₆H₅NH₃⁺  + Cl⁻

pOH = pKb + log (salt/base)

As we have value of pH, we need to determine the pOH

14 - pH = pOH

pOH = 8.43  (14 - 5.57)

Now we replace data:

pOH = pKb + log ( C₆H₅NH₃⁺/  C₆H₅NH₂ )

8.43 = 9.13 + log (  C₆H₅NH₃⁺ / 0.2 )

-0.7 = log (  C₆H₅NH₃⁺ / 0.2 )

10⁻⁰'⁷ = C₆H₅NH₃⁺ / 0.2

0.19952 = C₆H₅NH₃⁺ / 0.2

C₆H₅NH₃⁺ = 0.19952 . 0.2  = 0.0399 M

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3 years ago
ur lost 0 pr dog water box like fish dont talk to me unless u get earnings stop talking get good no earnings ur lost 360 movemen
Varvara68 [4.7K]

Answer:

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Explanation:

7 0
3 years ago
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Why is it important to living things that water is bonded by h bond and not by covalent or ionic one
nexus9112 [7]
Because im pretty sure the molecules would just fall apart like salt which is ionic
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3 years ago
Water is considered a polar solvent due to attractive forces known as hydrogen bonds. a hydrogen bond is:_________
muminat

Because of the attraction forces known as hydrogen bonding, water is referred to as a polar solvent. An attraction between molecules known as a hydrogen bond occurs when partially positive hydrogen atoms are drawn to partially negative F, O, or N atoms.

<h3>What is a hydrogen bond?</h3>

A hydrogen bond (or H-bond) is a strong electrostatic attraction between an electronegative atom holding a lone pair of electrons, known as the hydrogen bond acceptor, and a hydrogen (H) atom that is covalently attached to a more electronegative "donor" atom or group.

<h3>How can hydrogen atoms join together?</h3>

When a hydrogen atom bonds with an electronegative atom, powerful intermolecular forces called hydrogen bonds are produced. The hydrogen bond acceptor's electronegativity will rise, resulting in a stronger hydrogen bond.

To know more about Hydrogen Bond visit:

brainly.com/question/10904296

#SPJ4

4 0
2 years ago
someone fix this mess DONT ANSWER IF U WILL PUT A LINK I WILL REPORT YOU! BTW BIG SHOUToUT TO mcavoy799 TYYSMMM perfect and add
harkovskaia [24]

Answer: Glaciers can erode around rock. They shift over time so it causes the rock (or glacier) to erode. If it erodes enough it creates a valley. The glacier causes it to go deeper and deeper! That is how valleys are made!

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3 years ago
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