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podryga [215]
3 years ago
13

Assesses the consistency of observations by different observers.

Chemistry
1 answer:
Solnce55 [7]3 years ago
3 0

The consistency that should be assessed for observations via different observers is inter-rater reliability.

The following information should be considered:

  • The inter-rater reliabilities mean the decision consistency that lies between 2 reviewers & the significant validity component.
  • It should be used for assessing the consistency via various types of observers.

Therefore we can conclude that the consistency that should be assessed for observations via different observers is inter-rater reliability.

Learn more: brainly.com/question/22780158

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How many moles are in 39.5 grams of Lithium?
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Answer:

185.05 g.

Explanation

Firstly, It is considered as a stichiometry problem.

From the balanced equation: 2LiCl → 2Li + Cl₂

It is clear that the stichiometry shows that 2.0 moles of LiCl is decomposed to give 2.0 moles of Li metal and 1.0 moles of Cl₂, which means that the molar ratio of LiCl : Li is (1.0 : 1.0) ratio.

We must convert the grams of Li metal (30.3 g) to moles (n = mass/atomic mass), atomic mass of Li = 6.941 g/mole.

n = (30.3 g) / (6.941 g/mole) = 4.365 moles.

Now, we can get the number of moles of LiCl that is needed to produce 4.365 moles of Li metal.

Using cross multiplication:

2.0 moles of LiCl → 2.0 moles of Li, from the stichiometry of the balanced equation.

??? moles of LiCl → 4.365  moles of Li.

The number of moles of LiCl that will produce 4.365 moles of Li (30.3 g) is (2.0 x 4.365 / 2.0) = 4.365 moles.

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Molar mass of LiCl = 42.394 g/mole.

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