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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

An infant formula was also found to have been contaminated with 0.14 ppm melamine. (The abbreviation ppm stands for parts per million. This means, for example, there is 1 g of a substance per million grams of the product.) What mass of melamine is there in a package of infant formula with a mass of 454 g (one pound)?

Interpretation Introduction

Interpretation:

Mass of melamine in a package of infant formula with a mass of 454g is to be identified.

Concept Introduction:

Percentage of Weight: The grams of solute in 100 grams of solution, the fallowing formula is,

Percentageweight=Weightofsolute(g)Weightofsolution(g)×100

A hydrogen bonding is partially an electrostatic attraction between H atom which is bonded to more electronegative atom such as N, O, orF and another adjacent atom bearing a lone pair of electron.

Explanation

The chemical formula for melamine is C3H6N6 so the molecular weight of melamine is

C3H6N6Massofcarbonatoms=3×12=36Massofhydrogenatoms=1.01×6=6.01Massofnitrogenatom=14.01×6=84Totalmassvalueofgivencompound=126.13

Next we calculate melamine contaminated with 0

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