   Chapter 1, Problem 35RGQ

Chapter
Section
Textbook Problem

Molecular distances are usually given in nanometers (1 nm = 1 × 10–9 m) or in picometers (1 pm = 1 × 10–12 m). However, the angstrom (Å) unit is sometimes used, where 1 Å = 1 × 10–10 m. (The angstrom unit is not an SI unit.) If the distances between the Pt atom and the N atom in the cancer chemotherapy drug cisplatin is 1.97 Å, What is this distances in nanometers? In picometers? Interpretation Introduction

Interpretation: The distance between Pt atom and N atom in nanometers and Picometers has to be calculated

Concept Introduction:

Conversion of Units: First convert Picometers to meters and then convert meters to nanometers.  The process of using units to guide a calculation is called dimensional analysis.

Explanation

Conversion of Units: Known: 1 Ao = 0.1 nm and 1 Ao = 100 pm.Given: 1.97 AoConversionofAointonm:_1.97 Ao×0.1 nmAo=0

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