Concept explainers
Interpretation:
Relationship between
Concept Introduction:
Mole is S.I. unit. The number of moles is calculated as ratio of mass of compound to molar mass of compound.
Molar mass is sum of total mass in grams of all atoms that make up mole of particular molecule that is mass of 1 mole of compound. The S.I unit is
The expression to relate number of moles, mass and molar mass of compound is as follows:
Answer to Problem 3PQ
Option (D) is the correct one.
Explanation of Solution
Reason for correct option:
The formula to determine molarity is as follows:
Rearrange equation (1) to calculate number of moles of
Substitute
Neutralization reaction between
Since
Consider heat energy associated with neutralization reaction to produce
Heat energy associated with neutralization reaction to produce
Rearrange equation (3) to calculate
Substitute
Similarly, when
Since
Heat energy associated with neutralization reaction to produce
Rearrange equation (5) to calculate
Substitute
Relationship between
Hence, option (D) is correct.
Reason for incorrect option:
Relationship between
Therefore, choice (A),(B) and (C) is incorrect.
Relationship between
Hence option (D) is correct.
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