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Dafna11 [192]
3 years ago
15

Why is there need to standardize a solution​

Chemistry
1 answer:
viktelen [127]3 years ago
6 0

<u>standardization of a volumetric solutio</u><u>n used for titration is one of the most important preconditions for reliable and transparent titration results.</u>

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Calculate the mass percent for all components in a solution containing the following. 0.350 Kg of water, 5.4 moles of ammonia an
Alina [70]

Answer:

  • % Water = 54.96%
  • % Ammonia = 0.14%
  • % Cobalt (II) Nitrate = 30.62%

Explanation:

To calculate mass percent, first we need to <u>calculate the total mass of the mixture</u>:

  • Mass Water ⇒ 0.350 kg Water = 350 g water
  • Mass Ammonia⇒We use ammonia's molar mass⇒5.4 mol * 17 g/mol =  91.8 g
  • Mass cobalt (II) nitrate ⇒ 195.0 g

Total Mass = Mass Water + Mass Ammonia + Mass Cobalt Nitrate

  • Total Mass = 350 g+ 91.8 g+ 195 g = 636.8 g

To calculate each component's mass percent, we divide its mass by the total mass and multiply by 100:

  • % Water ⇒ 350/636.8 * 100% = 54.96%
  • % Ammonia ⇒ 91.8/636.8 * 100% = 0.14%
  • % Cobalt (II) Nitrate ⇒ 195/636.8 * 100% = 30.62%
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3 years ago
What is the trivial solution for a set of homogeneous equations? When is the solution not trivial. Give examples.
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sveticcg [70]
1. Pure substances cannot be separated into any other kinds of matter, while a mixture is a combination of two or more pure substances.

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