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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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Section
BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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Convert the following numbers of calories or kilocalories into joules or kilojoules.

  1. 7845 cal

i>Chapter 10, Problem 28QAP, Convert the following numbers of calories or kilocalories into joules or kilojoules. 7845 cal i>cal cal

  • 62.142 kcal
  • 43.024 cal
  • Interpretation Introduction

    (a)

    Interpretation:

    Convert 7845 cal to joules.

    Concept Introduction:

    A conversion factor is a numerical ratio which is used to show a measurement in one unit as another unit. It is always equal to 1.

    Explanation

    The given conversion is: conversion of calories to joules.

    1 calorie is equal to the 4.184 joules.

    1 cal = 4.184 J

    Thus, conversion factor is given by:

    4.184 J1 cal

    So,

    Interpretation Introduction

    (b)

    Interpretation:

    Convert 4.55×104 cal to joules.

    Concept Introduction:

    A conversion factor is a numerical ratio which is used to show a measurement in one unit as another unit. It is always equal to 1.

    Interpretation Introduction

    (c)

    Interpretation:

    Convert 62.142 kcal to kilojoules.

    Concept Introduction:

    A conversion factor is a numerical ratio which is used to show a measurement in one unit as another unit. It is always equal to 1.

    Interpretation Introduction

    (d)

    Interpretation:

    Convert 43, 024 kcal to kilojoules.

    Concept Introduction:

    A conversion factor is a numerical ratio which is used to show a measurement in one unit as another unit. It is always equal to 1.

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