An alloy sample has a total mass of and contains of copper

MATHEMATICS · Single correct · ISC · Chemistry · Some Basic Concepts of Chemistry · Dimensional analysis

Problem

An alloy sample has a total mass of

2.50\,\text{g}

and contains

35.0\,\text{mg}

of copper. What is the concentration of copper in the alloy expressed in parts per million (ppm)? (a)

8.8\times10^{3}\,\text{ppm}

(b)

1.4\times10^{5}\,\text{ppm}

(c)

1.4\times10^{4}\,\text{ppm}

(d)

1.4\times10^{2}\,\text{ppm}

Related theory

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