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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

A piece of turquoise is a blue-green solid; it has a density of 2.65 g/cm3 and a mass of 2.5 g.

  1. (a) Which of these observations are qualitative and which are quantitative?
  2. (b) Which of the observations are extensive and which are intensive?
  3. (c) What is the volume of the piece of turquoise?

(a)

Interpretation Introduction

Interpretation:

The given observation should be reported either as qualitative or quantitative.

Concept introduction:

Qualitative: The quality of something rather than its quantity.  A property that can be observed but not measured numerically.

Quantitative: A property that can be measured numerically and to determine the amount or proportions of its chemical constituents.

Explanation

Qualitative: In the statement, the qualitative properties are Blue-green color and solid physical state because color and physical state only be observed but not be measured...

(b)

Interpretation Introduction

Interpretation:

The given observation should be reported either as intensive property or extensive property.

Concept introduction:

Intensive property: A physical property of a system that does not depend on the system size or amount of material in the system. Intensive properties can be used to identify the substance.

Extensive property: A physical property of a system that does depend on the system size or amount of material in the system.

(c)

Interpretation Introduction

Interpretation:

The volume has to be calculated.

Concept introduction:

Density:

Density can be defined as property that links mass of an object to its volume.  It derived quantity and its unit is gml-1 for liquids and gcm-3 for solid.  The density of material can be calculated with the help of formula,

  Density=Mass(g)Volume(mlorcm3)

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