# Measurement

By Levi Clancy for Student Reader on *updated *

- Laboratory Methods
- Acids and Bases
- Antibody techniques
- Caenorhabditis elegans
- Cell Culture
- Chemical Kinetics
- Common Laboratory Microbes
- Competition Assay
- Drosophila melanogaster
- Experimental Design by the Scientific Method
- Focus Assay
- Genetic techniques
**Measurement**- Models & Representations
- Mouse Models
- Pathology techniques
- Protein analysis
- Visual Assays

## Units of Mass

Atomic Mass Unit | 1 u = 1.6605 × 10^{-27} |
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Mole (mol) | One mole is defined as the amount of substance that contains exactly as many atoms or molecules as are in precisely 12 grams of units in moles = mass ( grams ) / molecular mass ( g mol |

## Units of Temperature

Celsius/Centigrade (C) | Absolute zero: -273.15°C T°C = |
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Fahrenheit (F) | Absolute zero: -459.67°F T°F = |

Kelvin (K) | Kelvin and Centigrade have equal increments. The difference between Kelvin and Centigrade is that 0°K is absolute zero (-273.15°C) and 0°C is the freezing point of water (273.15°K). Thus, ΔT in °K and °C will be equal, even though T°F ≠ T°C. Absolute zero: 0°K |

## Units of Pressure

Pascals (Pa) | N/m^{2} | 1 Pascal = 7.50247 · 10^{-3} mm-Hg1 Pascal = 9.86923 · 10 ^{-6} atm1 Pascal = 10 ^{-5} Bar1 Pascal = 1.45037738 · 10 ^{-4} PSI |
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Torr | mm-Hg | 1 Torr = 133.289437 Pascal |

Atm | 1 atm = 1.01325 · 10^{5} Pascal1 atm = 760.0 mm-Hg | |

Bar | 1 Bar = 10^{5} Pascal | |

PSI | lbs in^{-2} | 1 PSI = 6894.75729 Pascal |

## Units of Heat and Energy

Joule (J) | |
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calorie (cal) | 1 calorie = 4.186 J |

Calorie (Cal) | 1 Calorie = 4.186 kJ = 1000 cal = 1 kcal = 4186 J |