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Introductory Chemistry: A Foundati...
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Introductory Chemistry: A Foundati...
ercise 15.6 Formalin is an aqueous solution of formaldehyde, HCHO, used as a preservative for biologic specimens. How many grams of formaldehyde must be used to prepare 2.5 L of 12.3 M formalin?
Interpretation:
The mass of the formaldehyde required to prepare
Concept Introduction:
The molarity of a solution is defined as the number of moles of solute dissolved in one liter of the solution. The formula for molarity is given as:
Where,
The required volume of
The molar mass of formaldehyde is
The molarity of a solution is given as:
Where,
Rearrange the above equation for the value of
Substitute the value of
Chapter 15 Solutions
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