Chapter 7 Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Alkaline | The measure of a basic substance in water. Any substance registering over 7 on the pH scale
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| Anaerobic | A term used to describe an organism or process that does not require O2.
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| Anions | Negatively charged ions such as bicarbonate of soda (baking soda) or limestone (calcium carbonate)
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| Beers Law | The higher a concentration of a substance, the darker the color produced on the test strip (colormetric tests are based on this)
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| Buffers | These substances, when added to water, do not allow rapid changes in pH. An example of a buffer is bicarbonate of soda. Buffering capacity is expressed as alkalinity.
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| Cations | A positively charge ion.
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| Colorimetric | A colorimetric test determines the quantity of a substance by the measurement of the intensity of light transmitted by the solution of a substance
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| Conductance | The ability of a substance to allow the passage of electrical current. Used to measure Total Dissolved Solids.
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| Effluent | A term used to describe water discharge from a rearing facility, treatment plant or an industry.
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| Grams Per Liter | Large concentrations of substances in solution can be recorded as this or as Parts per Thousand
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| Heat Capacity | The ability of a substance to resist changes in temperature
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| Heavy Metals | Mercury, Lead and Chromium are examples of these. They can bioaccumulate in organisms and can cause human health problems.
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| Hydroponics | Growing plants without soil, using a nutrient solution.
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| Ions | Electrically charged atoms, radicals or molecules.
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| Logarithmic | A mathematical scale where each step is 10 times the step before. It is used to express pH.
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| Part per billion | Equal to 1 microgram per kg or 1 microgram per L. A concentration at which 1 part is contained in a total of 1 billion units.
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| Part per million | A concentration that is also expressed as 1 mg/L. It is the most common unit to measure substances' concentration in water.
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| Part per thousand | Equivalent to 1 g/L or 1 unit out of one thousand units.
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| Salinity | The concentration of sodium, potassium, magnesium, calcium, bicarbonate, carbonate, sulfate, chloride, fluoride, bromide in water.
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| Acid - Base | Substances that have a non-nuetral pH. Strong forms of either can cause severe burns
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| Water Hardness | A measurement of the total concentration of calcium and magnesium
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| Wastewater | Water that has been used in a manufacturing, processing, or production facility.
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| Turbidity | Presence of suspended or colloidal material that reduces light penetration
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| Titrimetric | Describes a test that uses a titrant added to a known or specific volume of sample in the presence of an indicator.
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| Solubility | The degree to which a substance can be dissolved in a liquid.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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