Ion-Exchange Resins Can Remove Mg²⁺ and Ca²⁺ in Water (Called

question 122

Multiple Choice

Ion-exchange resins can remove Mg²⁺ and Ca²⁺ in water (called softening) by releasing Na⁺. What would be the concentration of sodium ion in the softened water if the combined concentration of these Group 2A ions that were removed from the hard water was 0.026 M?

• A) 0.052 M
• B) 0.26 M
• C) 0.13 M
• D) 0.00 M
• E) Can't tell, necessary information is lacking.

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Definitions:

Hydraulic Snubbers

Devices used in piping systems to control sudden shock and vibration by restricting fluid flow in response to rapid changes.

Pneumatic Snubbers

Devices in pneumatic systems that dampen sudden movements or shocks by restricting airflow, typically used to protect against damage from rapid actuations.

Off-highway Applications

Uses of vehicles or machinery in environments or for tasks not involving public roads, such as construction or agriculture.

Horn

Term used to describe the vertical hook that engages to the drawbar eye in a pintle hook assembly.