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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
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