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# Chm325A

### Test 1

Question | Answer |
---|---|

Mass | kilogram (kg); base unit |

Length | meter (m); base unit |

Time | second (s); base unit |

Temperature | kelvin (K); base unit |

Amount of substance | mole (mol); base unit |

Electric current | ampere (A); base unit |

Luminous intensity | candela (cd); base unit |

Volume | Liter 10^-3 m^3 (L) |

frequency | Hertz 1/s (Hz) |

force, weight | Newton kg m s^-2 (N) |

temperature | Degree Celsius K-273.15 (degree C) |

voltage | Volt m^2 kg s^-3 A^-1 (V) |

yotta- (Y) | 10^24 |

zetta- (Z) | 10^21 |

exa- (E) | 10^18 |

peta- (P) | 10^15 |

tera- (T) | 10^12 |

giga- (G) | 10^9 |

mega- (M) | 10^6 |

kilo (k) | 10^3 |

hecto- (h) | 10^2 |

deca- (da) | 10^1 |

deci- (d) | 10^-1 |

centi- (c) | 10^-2 |

milli- (m) | 10^-3 |

micro- (u) | 10^-6 |

nano- (n) | 10^-9 |

pico- (p) | 10^-12 |

femto- (f) | 10^-15 |

atto- (a) | 10^18 |

zepto- (z) | 10^-21 |

yocto- (y) | 10^-24 |

What is weight? | W=mg (N) |

What is avogadro's number? | 6.022*10^23 |

What is weight percent? | (weight solute/weight solution)*100% (w/w)*100% |

What is volume percent? | (volume solute/volume solution)*100% (v/v)*100% |

What is Weight/Volume percent | (weight solute, g/weight solution, mL)*100% (w/v)*100% |

What is p units? | -log |

What is the basic rule of dilution? | VC=VC |

What is the Empirical Formula? | Simplest whole number ratio of atoms in a chemical compound. |

What is a Molecular Formula? | Specifies the number of atoms in a molecule. |

What is a systematic error? | Mean data differs from true value, affect accuracy. |

What is a Random error? | Data is scattered around mean, affect precision. |

What is a gross error? | "Outlier" occasional result that differs significantly from other results in the measurement. |

What causes a systematic error? | instrumental error, human error, or method error |

Created by:
JadeTW