Question

? Water hardness is defined as ppm of CaCO$_3$ in water (you can find the hardness value in your local water report) • If the hardness is 100 ppm, it means there are 100 mg of CaCO$_3$ in 1.000L of water Source of CO$_2$ • Since CO$_2$ is in air, which dissolved in any open air, turn into H$_2$CO$_3$, Ca$^{2+}$ is mainly present in water as CaCO$_3$

          ? Water hardness is defined as ppm of CaCO$_3$ in water (you can find the hardness value in your
local water report)
• If the hardness is 100 ppm, it means there are 100 mg of CaCO$_3$ in 1.000L of water
Source of CO$_2$
• Since CO$_2$ is in air, which dissolved in any open air, turn into H$_2$CO$_3$, Ca$^{2+}$ is mainly present
in water as CaCO$_3$

? Water hardness is defined as ppm of CaCO3 in water (you can find the hardness value in your
local water report)
• If the hardness is 100 ppm, it means there are 100 mg of CaCO3 in 1.000L of water
Source of CO2
• Since CO2 is in air, which dissolved in any open air, turn into H2CO3, Ca^2+ is mainly present
in water as CaCO3

Added by Jose Angel A.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

05/20/2022

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For example, if the hardness is reported as 100 ppm, it means there are 100 mg of CaCO3 in 1.000 L of water. Show more…

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Water hardness is defined as ppm of CaCO3 in water (you can find the hardness value in your local water report). If the hardness is 100 ppm, it means there are 100 mg of CaCO3 in 1.000 L of water. Source of CO3^2- Since CO2 is in air, which dissolved in any open air, turns into H2CO3, Ca2+ is mainly present in water as CaCO3.