Total Hardness Calculator

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Number of Theoretical Plates and Capacity Factor

Important Formulae on Retention and Deviation

Relative and Adjusted Retention and Phase

✖Calcium Concentration is the concentration is the ratio of solute in a solution to either solvent or total solution. Concentration is usually expressed in terms of mass per unit volume.ⓘ Calcium Concentration [Ca]			+10% -10%
✖Magnesium Concentration is the concentration is the ratio of solute in a solution to either solvent or total solution. Concentration is usually expressed in terms of mass per unit volume.ⓘ Magnesium Concentration [Mg]			+10% -10%

✖The Total Hardness of Water formula is defined as the sum of the calcium and magnesium concentrations, both expressed as calcium carbonate.ⓘ Total Hardness [T_H]

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Formula

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Total Hardness

Formula

`"T"_{"H"} = (2.497*"Ca")+(4.118*"Mg")`

Example

`"3.0578mEq/L"=(2.497*"0.4mEq/L")+(4.118*"0.5mEq/L")`

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Total Hardness Solution

STEP 0: Pre-Calculation Summary

Formula Used

Total Hardness of Water = (2.497*Calcium Concentration)+(4.118*Magnesium Concentration)
T_H = (2.497*Ca)+(4.118*Mg)
This formula uses 3 Variables

Variables Used

Total Hardness of Water - (Measured in Mole per Cubic Meter) - The Total Hardness of Water formula is defined as the sum of the calcium and magnesium concentrations, both expressed as calcium carbonate.
Calcium Concentration - (Measured in Mole per Cubic Meter) - Calcium Concentration is the concentration is the ratio of solute in a solution to either solvent or total solution. Concentration is usually expressed in terms of mass per unit volume.
Magnesium Concentration - (Measured in Mole per Cubic Meter) - Magnesium Concentration is the concentration is the ratio of solute in a solution to either solvent or total solution. Concentration is usually expressed in terms of mass per unit volume.

STEP 1: Convert Input(s) to Base Unit

Calcium Concentration: 0.4 Milliequivalents per Liter --> 0.4 Mole per Cubic Meter (Check conversion here)
Magnesium Concentration: 0.5 Milliequivalents per Liter --> 0.5 Mole per Cubic Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

T_H = (2.497*Ca)+(4.118*Mg) --> (2.497*0.4)+(4.118*0.5)

Evaluating ... ...

T_H = 3.0578

STEP 3: Convert Result to Output's Unit

3.0578 Mole per Cubic Meter -->3.0578 Milliequivalents per Liter (Check conversion here)

FINAL ANSWER

3.0578 Milliequivalents per Liter <-- Total Hardness of Water

(Calculation completed in 00.004 seconds)

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< 25 Analytical Methods Calculators

Volume of Unknown Metal given Factor of Standard Solution

Go Volume of Unknown Metal = (Factor of Standard Solution*Weight of Brass*1000)/(Molecular Weight*Percentage of Metal)

Molecular Weight given Factor of standard solution

Go Molecular Weight = (Volume of Unknown Metal*Factor of Standard Solution*Percentage of Metal)/(Weight of Brass*1000)

Weight of Brass given Factor of standard solution

Go Weight of Brass = (Molecular Weight*Volume of Unknown Metal*Percentage of Metal)/(Factor of Standard Solution*1000)

Factor of Standard solution

Go Factor of Standard Solution = (Molecular Weight*Volume of Unknown Metal*Percentage of Metal)/(Weight of Brass*1000)

Percentage Metal in Brass

Go Percentage of Metal = (Molecular Weight*Volume of Unknown Metal*Factor of Standard Solution)/(Weight of Brass*1000)

Concentration of Unknown Metal given Metal Oxide Percent

Go Strength of Unknown Metal = (Molecular Weight of Metal Oxide*Weight of Metal Oxide*25*100)/(1000*Percentage Metal oxide in Unknown Solid)

Percentage Metaloxide in Unknown Solid

Go Percentage Metal oxide in Unknown Solid = (Molecular Weight of Metal Oxide*Strength of Unknown Metal*25*100)/(1000*Weight of Metal Oxide)

Weight of Metal oxide given Percentage

Go Weight of Metal Oxide = (Molecular Weight of Metal Oxide*Strength of Unknown Metal*25*100)/(1000*Percentage Metal oxide in Unknown Solid)

Strength of Unknown Metal ion given Absorbance

Go Strength of Unknown Metal = (Absorbance of Unknown Metal/Absorbance of Known Metal)*Strength of Known Metal

Strength of Unknown Metal ion Solution

Go Strength of Known Metal = (Absorbance of Known Metal/Absorbance of Unknown Metal)*Strength of Unknown Metal

Absorbance of Unknown Metal

Go Absorbance of Unknown Metal = (Strength of Unknown Metal/Strength of Known Metal)*Absorbance of Known Metal

Absorbance of Known Metal

Go Absorbance of Known Metal = (Strength of Known Metal/Strength of Unknown Metal)*Absorbance of Unknown Metal

Hydrogen Concentration

Go Hydrogen Concentration = Total Ionic Concentration-Final Sodium Concentration+Initial Sodium Concentration

Strength of Standard EDTA

Go Strength of EDTA = (Weight of Metal Oxide*25)/(0.5475*Volume of Unknown Metal)*Strength of Unknown Metal

Magnesium Concentration given Hardness

Go Magnesium Concentration = (Total Hardness of Water-(2.497*Calcium Concentration))/4.118

Calcium Concentration given Hardness

Go Calcium Concentration = (Total Hardness of Water-(4.118*Magnesium Concentration))/2.497

Total Hardness

Go Total Hardness of Water = (2.497*Calcium Concentration)+(4.118*Magnesium Concentration)

Initial Sodium Hydroxide Concentration

Go Initial Sodium Concentration = Final Sodium Concentration-Potassium Concentration

Final Sodium Hydroxide Concentration

Go Final Sodium Concentration = Initial Sodium Concentration+Potassium Concentration

Potassium Estimation

Go Potassium Concentration = Final Sodium Concentration-Initial Sodium Concentration

Strength of Unknown Metal ion given Known Strength

Go Strength of Unknown Metal = (Strength of Known Metal*Volume of Unknown Metal)/25

Strength of known Metal ion given Unknown Strength

Go Strength of Known Metal = (Strength of Unknown Metal*25)/Volume of Unknown Metal

Volume of Unknown Metal

Go Volume of Unknown Metal = (Strength of Unknown Metal*25)/Strength of Known Metal

Total Concentration of Potassium and Hydrogen

Go Total Ionic Concentration = Hydrogen Concentration+Potassium Concentration

Strength of EDTA given Concentration of Zinc

Go Strength of EDTA = Final Zinc Concentration-Initial Zinc Concentration

Total Hardness Formula

Total Hardness of Water = (2.497*Calcium Concentration)+(4.118*Magnesium Concentration)
T_H = (2.497*Ca)+(4.118*Mg)

Is TDS same as hardness?

Hardness is specifically identified as the amount of calcium and magnesium salts in water, generally in the form of bicarbonates, chlorides, and sulphates. TDS, on the other hand, measures the total of all mineral elements - not only calcium and magnesium.

How to Calculate Total Hardness?

Total Hardness calculator uses Total Hardness of Water = (2.497*Calcium Concentration)+(4.118*Magnesium Concentration) to calculate the Total Hardness of Water, The Total Hardness formula is defined as the sum of the calcium and magnesium concentrations, both expressed as calcium carbonate. Total Hardness of Water is denoted by T_H symbol.

How to calculate Total Hardness using this online calculator? To use this online calculator for Total Hardness, enter Calcium Concentration (Ca) & Magnesium Concentration (Mg) and hit the calculate button. Here is how the Total Hardness calculation can be explained with given input values -> 3.0578 = (2.497*0.4)+(4.118*0.5).

FAQ

What is Total Hardness?

The Total Hardness formula is defined as the sum of the calcium and magnesium concentrations, both expressed as calcium carbonate and is represented as T_H = (2.497*Ca)+(4.118*Mg) or Total Hardness of Water = (2.497*Calcium Concentration)+(4.118*Magnesium Concentration). Calcium Concentration is the concentration is the ratio of solute in a solution to either solvent or total solution. Concentration is usually expressed in terms of mass per unit volume & Magnesium Concentration is the concentration is the ratio of solute in a solution to either solvent or total solution. Concentration is usually expressed in terms of mass per unit volume.

How to calculate Total Hardness?

The Total Hardness formula is defined as the sum of the calcium and magnesium concentrations, both expressed as calcium carbonate is calculated using Total Hardness of Water = (2.497*Calcium Concentration)+(4.118*Magnesium Concentration). To calculate Total Hardness, you need Calcium Concentration (Ca) & Magnesium Concentration (Mg). With our tool, you need to enter the respective value for Calcium Concentration & Magnesium Concentration and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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