Chemistry1.2

Chemistry1.2 - CH 1 Measurements RF clickers should be...

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CH 1 Measurements
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RF clickers should be restocked at both Barnes and Noble and Varsity either Wednesday or Thursday so check with them for your hardware.
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US and Them The US uses the Customary system Inches, pounds, quarts, calories, fahrenheit The rest of the world uses Systeme International (metric system) Meters, grams, liters, joules, celsius/kelvin
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What are some common measurements? What do we often measure here in the US using the SI system?
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US to Them Converting US units to SI units Length: 1 inch = 2.54 centimeters Mass: 1 kilogram = 2.2 pounds Volume: 1 liter = 1.057 quarts Energy: 4.184 Joules = 1 Calorie Temperature: °C = (°F - 32 ) x 5/9 Kelvin = °C + 273
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Why do we use SI in chemistry? SI units are easy to convert within the same measurement 1 meter = 100 centimeters = 1000 millimeters 1 mile = 1760 yards = 5280 feet (not easy)
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Also SI units are easy to convert between different measurements 1 cubic centimeter = 1 milliliter 1 cubic foot = 7.48 gallons (not easy to remember)
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Know your prefixes
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Converting between units
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Chemistry1.2 - CH 1 Measurements RF clickers should be...

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