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(a) Normally the human body can endure a temperature of $105^{\circ} \mathrm{F}$ for only short periods of time without permanent damage to the brain and other vital organs. What is this temperature in degrees Celsius? (b) Ethylene glycol is a liquid organic compound that is used as an antifreeze in car radiators. It freezes at $-11.5^{\circ} \mathrm{C} .$ Calculate its freezing temperature in degrees Fahrenheit. (c) The temperature on the surface of the sun is about $6300^{\circ} \mathrm{C}$. What is this temperature in degrees Fahrenheit? (d) The ignition temperature of paper is $451^{\circ} \mathrm{F}$. What is the temperature in degrees Celsius?

i.Use this formula to convert Celsius to Fahrenheit.ii. Use this formula to convert Fahrenheit to Celsius.

Chemistry 101

Chapter 1

Chemistry: The Study of Change

Intro to Chemistry

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Lectures

02:29

Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry deals with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds. Chemistry also involves understanding the properties and interactions of individual atoms and molecules for use in larger-scale applications.

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In chemistry and physics, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, "matter" generally includes atoms and anything made up of them, and any particles and objects that act as if they have both rest mass and volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or sound. Matter exists in various states (known as phases) that are defined by various physical properties, such as state of matter, phase, shape, and density. The Standard Model of particle physics and the general theory of relativity describe fundamental particles and the fundamental forces acting between them that control the structure and dynamics of matter.

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(a) Normally the human bod…

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Normally the human body ca…

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Body Temperatures. The tem…

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(a) Normal body temperatur…

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Body Temperature You may h…

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for this temperature? (b) …

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The highest recorded body …

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(a) A child has a fever of…

to cover it. Fahrenheit into Celsius will use the equation. Celsius is equal to the Fahrenheit. Temperature 105 minus 32 divided by 9/5 or 1.8 40.6 degrees Celsius, equals 105 F. Deal from Fahrenheit, we rearranged that equation. Fahrenheit is going to be equal to nine fits, or 1.8 multiplied by the Celsius temperature plus 32 so a negative 11.5 degrees Celsius is 11.3 degrees Fahrenheit. We'll do the same thing with the 6300 degrees Fahrenheit, and we get 11,400 decrees. I'm sorry we get the 6300 degrees Celsius to get 11,400 degrees Fahrenheit where we have two significant figures here. So it would just be 11,000 degrees Fahrenheit and for Celsius, do what we did up here. Celsius temperatures. Fahrenheit temperature for 51 minus 32 divided by 9 51.8 and we get 233 degrees Celsius is the same as 451 degrees Fahrenheit.

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