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22 solutions

ppm

Q. A person is considered legally intoxicated with a blood alcohol level of 80.0 mg/dL. Assuming that blood plasma has a density of 1.025 g/mL, what i...

Solved • Nov 1, 2019

ppm

Q. A 2.950 × 10−2 M solution of NaCl in water is at 20.0°C. The sample was created by dissolving a sample of NaCl in water and then bringing the volum...

Solved • Aug 2, 2019

ppm

Q. Glucose makes up about 0.10% by mass of human blood.Calculate this concentration in ppm.

Solved • Dec 3, 2018

ppm

Q. The maximum allowable concentration of lead in drinking water is 9.0  ppb.Calculate the molarity of lead in a 9.0- ppb solution.

Solved • Dec 3, 2018

ppm

Q. The maximum allowable concentration of lead in drinking water is 9.0 ppb.How many grams of lead are in a swimming pool containing 9.0 ppb lead in 7...

Solved • Dec 3, 2018

ppm

Q. Fish need at least 4 ppm dissolved O2 for survival.What is this concentration in mol/L?

Solved • Dec 3, 2018

ppm

Q. A solution of SO2 in water contains 0.00023 g of SO2 per liter of solution.What is the concentration of SO2 in ppm?

Solved • Dec 3, 2018

ppm

Q. Seawater contains 8.0×10−3 g Sr2+ per kilogram of water. What is the concentration of Sr2+ measured in ppm?

Solved • Dec 3, 2018

ppm

Q. A water sample contains the pollutant chlorobenzene with a concentration of 16 ppb (by mass). What volume of this water contains 5.01×102 mg of chl...

Solved • Dec 3, 2018

ppm

Q. The Safe Drinking Water Act (SDWA) sets a limit for mercury-a toxin to the central nervous system-at 0.002 ppm by mass. Water suppliers must period...

Solved • Dec 3, 2018

ppm

Q. Perfluorocarbons (PFCs), hydrocarbons with all H atoms replaced by F atoms, have very weak cohesive forces. One interesting consequence of this pro...

Solved • Oct 30, 2018

ppm

Q. The maximum concentration set by the U.S. Environmental Protection Agency for lead in drinking water is 15 ppb and for cadmium is 5.0 ppb. What are...

Solved • Aug 14, 2018

ppm

Q. In clinical applications, the unit parts per million (ppm) is used to express very small concentrations of solute, where 1 ppm is equivalent to 1 m...

Solved • Jul 17, 2018

ppm

Q. How many grams of chlorine gas are needed to make 3.90 x 106 g of a solution that is 2.00 ppm chlorine by mass? 

Solved • Jul 17, 2018

ppm

Q. Decide it is time to clean your pool since summer is quickly approaching. Your pool maintenance guide specifies that the chlorine, CI2, concentrati...

Solved • May 31, 2018

ppm

Q. A 2.90 L sample of water contains 217.5 μg of Lead (II) ions. Calculate the concentration of lead in ppm.A) 7.5 X 10‐1 ppmB) 7.5 X 10‐2 ppmC) 7.5 X...

Solved • Nov 15, 2016

ppm

Q. A 4.55 L sample of solution contains 0.115 g of sodium ions. Determine the concentration of sodium ions in ppm if the density of the solution is 1....

Solved • Aug 24, 2016

ppm

Q. The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of sol...

Solved • Jul 21, 2016

ppm

Q. The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of sol...

Solved • Jul 21, 2016

ppm

Q. The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of sol...

Solved • Jul 21, 2016

ppm

Q. The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of sol...

Solved • Jul 21, 2016

ppm

Q. A 1.00 L sample of water contains 0.0036 g of Cl - ions. Determine the concentration of chloride ions in ppm if the density of the solution is 1.00...

Solved • Apr 11, 2016