Understanding Water Hardness: Causes and Solutions | Homework Help

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Discussion Overview

The discussion centers on the causes of varying water hardness in different floors of a building, specifically why water on the 1st and 2nd floors may be harder than that on the 3rd and 4th floors. Participants explore potential explanations and seek suggestions for a homework paper on the topic.

Discussion Character

  • Homework-related, Exploratory, Conceptual clarification

Main Points Raised

  • One participant suggests that warmer temperatures in the basement might cause Ca2+ ions to react with bicarbonate, leading to buildup, although this raises questions about the flow of water from the same pipes to upper floors.
  • Another participant notes that water pressure would be higher at the bottom of the building, which could influence hardness.
  • A later reply questions whether the observed greater buildup of scale on lower pipes supports the conclusion about hardness and suggests that more water may need to flow through pipes closer to the entry level of the building.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the reasons for the differences in water hardness across floors, with multiple competing views and uncertainties remaining in the discussion.

Contextual Notes

Participants express uncertainty regarding the relationship between temperature, pressure, and water hardness, as well as the assumptions about water flow and buildup in pipes.

noname2020x
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Homework Statement



I know what causes water hardness, how it can be resolved (or dissolved - hehe), but I'm not sure why certain parts of pipes would be harder than others. Specifically, why the water on the 1st and 2nd floor of a building would be harder than that on the 3rd and 4th floor. I have to write a ten page paper on these findings, and I'm stumped. Suggestions? Possible causes?

Homework Equations



2 HCO3– → CO32– + CO2

The Attempt at a Solution



The only thing I can think of is that is may be warmer in the basement making the Ca2+ ions react with bicarbonate forming buildup.The problem is, the water from the same pipes (I assume) travels to the top floor.

HELP!
 
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the water pressure would be higher at the bottom of the building
 
Thanks! I will add that to my paper for sure. Any more suggestions?
 
Any more ideas?
 
why the water on the 1st and 2nd floor of a building would be harder than that on the 3rd and 4th floor.
Is this a conclusion you arrived at based on the observed greater buildup of scale on the lower pipes? Is it a "safe" conclusion?

Perhaps more water is required to flow through pipes the closer they are to the level at which water enters the building?
 

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