1.49 Express the answers to the following calculations inscientific notation:(a) 0.0095 + (8.5 × 10-³)(b) 653 ÷ (5.75 × 10-8)(c) 850,000 – (9.0 × 10°)(d) (3.6 × 10-4) × (3.6 × 10")

Introduction: Rules for Scientific Notation: 1.The given number should be written as a single-digit…

Answered: 1.49 Express the answers to the…

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

ChapterB: Si Units, Unit Conversions, And Physics For General Chemistry

Section: Chapter Questions

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1-86 The specific heats of some elements at 25oC are as follows: aluminum = 0.215 cal/g · oC; carbon (graphite) = 0.170 caI/g oC; iron = 0.107 cal/g mercury = 0.033 1 caI/g oC. (a) Which element would require the smallest amount of heat to raise the temperature of 100 g of the element by 10oC? (b) If the same amount of heat needed to raise the temperature of 1 g of aluminum by 25oC were applied to 1 g of mercury, by how many degrees would its temperature be raised? (c) If a certain amount of heat is used to raise the temperature of 1.6 g of iron by 10oC, the temperature of 1 g of which element would also be raised by 10oC, using the same amount of heat?
1-78 The kinetic energy possessed by an object with a mass of 1 g moving with a velocity of 1 cm/s is called 1 erg. What is the kinetic energy, in ergs, of an athlete with a mass of 127 lb running at a velocity of 14.7 mi/h?
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1.49 Express the answers to the following calculations in scientific notation: (a) 0.0095 + (8.5 × 10-³) (b) 653 ÷ (5.75 × 10-8) (c) 850,000 – (9.0 × 10°) (d) (3.6 × 10-4) × (3.6 × 10")