E Values and i Factor in Chemistry

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Questions and Answers

What should be calculated first when Evalues is requested in a question?

Molecular structure
i factor
Molar mass (correct)
Density

What is the value of ifactor for sodium chloride?

3.0
1.8 (correct)
1.2
2.4

According to the note, what is the Mwt of sodium chloride?

28.5
48.5
38.5 (correct)
58.5

What is the first step to find the factor?

<p>Finding the dissociation ratio for each ion (C)</p> Signup and view all the answers

What do you do after summing the dissociation ratios?

<p>Divide by 100 (A)</p> Signup and view all the answers

Study Notes

Evalues and iFactor

Evalues questions require finding the iFactor first, as it's essential to solve the problem using the law.
Even if the iFactor is not explicitly requested, it's still necessary to find it.

iFactor Formula

iFactor of a substance is calculated using the formula: Sodium Chloride (NaCl) = 1.8 (constant values)

Mut of a Substance

Mut of a substance is a given value in the question.
Example: Mut of Sodium Chloride = 38.5

Calculating iFactor

Steps to calculate iFactor:
- Find the dissociation rate of each ion.
- Find the remaining percentage of the compound that did not dissociate.
- Add the two values.
- Divide the result by 100.

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Description

This quiz covers the concept of E values and i factor in chemistry, including how to calculate and apply them in problems involving substances like sodium chloride.