Units and unit conversion exercises(a) What does the unit ppb m... | Filo
Units and unit conversion exercises(a) What does the unit p…
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The unit ppb (parts per billion) is used for extremely dilute concentrations and represents one gram of solute per 10^9 grams of solvent, or one microgram of solute per kilogram of solvent. Suppose that 3.5 grams of phenol red indicator (chemical formula: C19 H14 O5  S ) are placed in an Olympic-sized swimming pool to determine the pH. (a) If the pool measures 50.0 meters long by 25.0 meters wide with an average depth of 2.75 meters, calculate the concentration of the indicator in parts per bill
The unit ppb (parts per billion) is used for extremely dilute concentr…
Jun 20, 2021
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Understanding ppm vs. ppb vs. percent — what do the terms "parts per million," and "parts per billion" mean?
Understanding ppm vs. ppb vs. percent — what do the terms "part…
Dec 25, 2021
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SOLVED:The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, I ppm means 1 part of solute for every 10^6 parts of solution. Mathematically, by mass: ppm=(μg solute )/(g solution )=(mg solute )/(kg solution ) In the case of very dilute aqueous solutions, a concentration of 1.0 ppm is equal to 1.0 μg of solute per 1.0 mL, which equals 1.0 g solution. Parts per billion is defined in a similar fashion. Calculate the molarity of
SOLVED:The units of parts per million (ppm) and parts per billion …
May 2, 2020
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2.9: Convert between %, ppm, and ppb
2.9: Convert between %, ppm, and ppb
Sep 11, 2024
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The Portland Police Bureau Cold Case Unit will be reinstated thanks to a grant. In 2004, PPB formed a Cold Case Unit to use advances in technology to review and investigate unsolved homicides dating back to the 1960s. Over the course of the next 18 years, the Cold Case Unit reviewed more than 270 cases. The unit was able to clear more than 50 of those cases. More than 30 individuals were charged with homicide-related crimes. In 2022, the Cold Case Unit was disbanded due to the reallocation of re
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The units of parts per million (ppm) and parts per billion (ppb... | Filo
The units of parts per million (ppm) and parts per billion (ppb... | Filo
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