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Accuracy v

# Accuracy v - F = 1.8 100 ° C To Convert • K= ° C 273.15...

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Accuracy v. Precision True value accurate Can be precise (when close together) but not accurate Not precise but accurate by chance Do reactions, get a product, need to weigh it? Same person should do all measurements All measurements should be done on same balance Degree Symbols Degrees Celsius= ° C Kelvin (absolute)= K [Kelvin temperature really measures the amount of movement: molecular movement] Degrees Fahrenheit= ° F 180 °
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Unformatted text preview: F = 1.8 100 ° C To Convert: • K= ° C + 273.15 • ° F= 1.8 x ( ° C) + 32 • ° C= ° F- 32 1.8 • 25 ° C is what ° F • 25= x- 32 25 x 1.8= 45 1.8 45 + 32 = 77 ° F • STP= Standard Temperature Pressure • 25 ° C=77 ° F Density o The ratio of the mass of a substance to the volume occupied by the substance d= mass/volume o Varies with temperature o Substances expand under heat o Substances contract when cool...
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