The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO 3 , which is equivalent to milligrams of CaCO 3 per liter of water. What is the molar concentration of Ca 2 + ions in a water sample with a hardness count of 175 mg CaCO 3 / L ?
The hardness of water (hardness count) is usually expressed in parts per million (by mass) of CaCO 3 , which is equivalent to milligrams of CaCO 3 per liter of water. What is the molar concentration of Ca 2 + ions in a water sample with a hardness count of 175 mg CaCO 3 / L ?
The hardness of water (hardness count) is usually expressed in parts per million (by mass) of
CaCO
3
, which is equivalent to milligrams of
CaCO
3
per liter of water. What is the molar concentration of
Ca
2
+
ions in a water sample with a hardness count of 175 mg
CaCO
3
/
L
?
According to open access forums ionic antimony Sb (111) can be reduced to elemental Sb (0) in solution and in macromolecules like condensation polymers polyethylene terephthalate (PET) causing greying of the polymer matrix. It has been connected to thermal degradation of the polymer during processing to the formation of thermally unstable EG ethyleen glycol that forms at various temperatures formic acid, formaldehyde, acetaldehyde and much more depending on temperature. I need to know what organics are more powerful reducing agents and at what concentration (relative) to each organic will initiate this reduction. Furthermore, is the pH dependant ? Are other trace elements in the plastic also a cause of concern e.g. aluminum from aluminum chloride (lewis acid). Therefore, the ultimate solution should include a means to inhibit reduction of ionic antimony and will the same solution comply with cobalt impurities from ionic cobalt? Some PET have combinations of catalyst and their residues…
From a pH standpoint is the reduction of ionic Antimony Sb (111) to elemental Sb (0) occur more readily by acidic species acting as reducing agents or basic substances? I want to inhibit this reduction of ionic to elemental. Suggestions and directions!
Obtain the standard potential at 25°C of the Cu* I Cu | Pt electrode
from the standard potentials E°
Cu²+/Cu
= 0.341 V and E
Cu²+ /Cu+
= 0.153 V.
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell