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If the methyl orange alkalinity of water equals or exceeds total hardness, all of the hardnessis
- a)Non-carbonate hardness
- b)Carbonate hardness
- c)Pseudo hardness
- d)Negative Non-carbonate hardness
Correct answer is option 'B'. Can you explain this answer?
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If the methyl orange alkalinity of water equals or exceeds total hardn...
Methyl Orange Alkalinity
Methyl orange alkalinity is a measure of the amount of alkaline substances present in water. It is determined by using a color indicator called methyl orange, which changes color depending on the pH of the water. Methyl orange turns yellow in acidic conditions and red in alkaline conditions.
Total Hardness
Total hardness is a measure of the concentration of calcium and magnesium ions in water. It is usually expressed in terms of calcium carbonate (CaCO3) equivalents. Hardness in water can be classified into two types: carbonate hardness and non-carbonate hardness.
Carbonate Hardness
Carbonate hardness is a measure of the concentration of bicarbonate (HCO3-) and carbonate (CO32-) ions in water. It is also known as temporary hardness because it can be removed by boiling the water. Carbonate hardness is responsible for the formation of limescale in pipes and appliances.
Non-carbonate Hardness
Non-carbonate hardness is a measure of the concentration of other ions, such as calcium and magnesium sulfates, chlorides, and nitrates, in water. It is also known as permanent hardness because it cannot be removed by boiling the water. Non-carbonate hardness is responsible for the formation of soap scum and can cause other issues in water systems.
Explanation of the Correct Answer
If the methyl orange alkalinity of water equals or exceeds the total hardness, it means that the alkaline substances in the water are predominantly carbonate ions. This is because methyl orange alkalinity measures the concentration of alkaline substances, which are mainly bicarbonate and carbonate ions.
Since carbonate ions are responsible for carbonate hardness, it can be concluded that if the methyl orange alkalinity is equal to or higher than the total hardness, all of the hardness in the water is carbonate hardness.
This makes option 'B' the correct answer, as carbonate hardness is the only type of hardness present in the water in this scenario.
In summary, if the methyl orange alkalinity of water equals or exceeds the total hardness, it indicates that all of the hardness in the water is carbonate hardness.
Methyl orange alkalinity is a measure of the amount of alkaline substances present in water. It is determined by using a color indicator called methyl orange, which changes color depending on the pH of the water. Methyl orange turns yellow in acidic conditions and red in alkaline conditions.
Total Hardness
Total hardness is a measure of the concentration of calcium and magnesium ions in water. It is usually expressed in terms of calcium carbonate (CaCO3) equivalents. Hardness in water can be classified into two types: carbonate hardness and non-carbonate hardness.
Carbonate Hardness
Carbonate hardness is a measure of the concentration of bicarbonate (HCO3-) and carbonate (CO32-) ions in water. It is also known as temporary hardness because it can be removed by boiling the water. Carbonate hardness is responsible for the formation of limescale in pipes and appliances.
Non-carbonate Hardness
Non-carbonate hardness is a measure of the concentration of other ions, such as calcium and magnesium sulfates, chlorides, and nitrates, in water. It is also known as permanent hardness because it cannot be removed by boiling the water. Non-carbonate hardness is responsible for the formation of soap scum and can cause other issues in water systems.
Explanation of the Correct Answer
If the methyl orange alkalinity of water equals or exceeds the total hardness, it means that the alkaline substances in the water are predominantly carbonate ions. This is because methyl orange alkalinity measures the concentration of alkaline substances, which are mainly bicarbonate and carbonate ions.
Since carbonate ions are responsible for carbonate hardness, it can be concluded that if the methyl orange alkalinity is equal to or higher than the total hardness, all of the hardness in the water is carbonate hardness.
This makes option 'B' the correct answer, as carbonate hardness is the only type of hardness present in the water in this scenario.
In summary, if the methyl orange alkalinity of water equals or exceeds the total hardness, it indicates that all of the hardness in the water is carbonate hardness.
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If the methyl orange alkalinity of water equals or exceeds total hardness, all of the hardnessisa)Non-carbonate hardnessb)Carbonate hardnessc)Pseudo hardnessd)Negative Non-carbonate hardnessCorrect answer is option 'B'. Can you explain this answer?
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