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Yanka [14]
3 years ago
15

Help Chem with give brainlsit

Chemistry
1 answer:
motikmotik3 years ago
4 0

Answer:

0.15 mol HCl / 0.4 L H20 = 0.375 M HCl

Explanation:

Plug in :)

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What is the pH of a 1 ´ 10-5 M KOH solution?
melisa1 [442]
KOH -------------> K⁺   +  OH⁻

pOH = - log [ OH⁻ ]

pOH = - log [ 1 x 10⁻⁵ ]

pOH =  5

pH + pOH = 14

pH + 5 = 14

pH = 14 - 5

pH = 9

hope this helps!

3 0
3 years ago
What happens when a solid is dissolved in a liquid
Drupady [299]

Answer:

adds more liquid

Explanation:

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4 years ago
Write the chemical equation for the reaction of Fe(II) ion (Fe2 ) with phenanthroline. (Use the abbreviation phen for the phenan
miskamm [114]

Answer:

[Fe(phen)3]2+    Reactants  Fe+2 clear phen white solid   product orange red

mol ratios 1;1 OF fE

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3 years ago
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4 years ago
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g All of the molecules below have polar bonds but only one of the molecules is a polar molecule. Which one is a polar molecule?
lbvjy [14]

Answer: NF_3

Explanation:

Geometrical symmetry of the molecule and the polarity of the bonds determine the polarity of the molecule.

The molecule that has zero dipole moment that means it is a geometrically symmetric molecule and the molecule which has some net dipole moment means it is a geometrically asymmetric molecule.

As the molecule is symmetric, the dipole moment will be zero as dipole moments cancel each other and the molecule will be non-polar.

As the molecule is asymmetric, the dipole moment will not be zero and the molecule will be polar.

Example: NF_3

Thus, we can say that NF_3 is a polar molecule.

4 0
3 years ago
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