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Debora [2.8K]
3 years ago
8

Give examples to three solutions you commonly use and identify the solvent and solutes that make it each up.

Chemistry
2 answers:
8_murik_8 [283]3 years ago
8 0
Mouthwash:
solvent - water
solute - alcohols

vinegar:
solvent - water
solute - acetic acid

bleach:
solvent - water
solute - sodium hypochlorite

hope this helps!!

12345 [234]3 years ago
5 0
Water (solvent) and salt (solute)
Tea (solvent) and sugar (solute)
Water (solvent) and vinegar (solute)
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Answer:

1.389

Explanation:

P = m / V

m = 1250

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Would you expect the wavelength of maximum absorbance for [Cu(NH3)4]2+ to be greater than or less than the wavelength of maximum
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Answer:

Less

Explanation:

Since [Cu(NH3)4]2+ and [Cu(H2O)6]2+ are Octahedral Complexes the transitions between d-levels explain the majority of the absorbances seen in those chemical compounds. The difference in energy between d-levels is known as ΔOh (ligand-field splitting parameter) and it depends on several factors:

  • The nature of the ligand: A spectrochemical series is a list of ligands ordered on ligand strength. With a higher strength the ΔOh will be higher and thus it requires a higher energy light to make the transition.
  • The oxidation state of the metal: Higher oxidation states will strength the ΔOh because of the higher electrostatic attraction between the metal and the ligand

A partial spectrochemical series listing of ligands from small Δ to large Δ:

I− < Br− < S2− < Cl− < N3− < F−< NCO− < OH− < C2O42− < H2O < CH3CN < NH3 < NO2− < PPh3 < CN− < CO

Then NH3 makes the ΔOh higher and it requires a higher energy light to make the transition, which means a shorter wavelength.

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3 years ago
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where are the following??

like anything? any animal?

Explanation:

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How many moles of potassium nitrate, KNO3 are present in a sample with a mass of 85.2 g?
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