Calcium minerals in boiler water are...

Question 1 / 205eccefa0bacbc34ba4d46f99

Question 1 of 205eccefa0bacbc34ba4d46f99

Calcium minerals in boiler water are precipitated out of solution by the use of which of the listed chemicals?

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5eccefa0bacbc34ba4d46f99

Calcium minerals in boiler water are precipitated out of solution by the use of which of the listed chemicals?

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🔍 Key Concepts

• Boiler water internal treatment methods • Difference between a precipitating treatment and a pH indicator • Common chemicals used to remove hardness (calcium and magnesium) by forming sludge that can be blown down

💭 Think About

• Ask which chemical actually reacts with calcium to form an insoluble compound that can be removed, instead of just changing pH or indicating pH • Identify which options are really just different names for the same substance and think about their typical use in boiler water programs • Consider which chemical is known in water treatment as a phosphate precipitating agent for hardness

✅ Before You Answer

• Eliminate anything that is only a test indicator, not a treatment chemical • Recognize that caustic soda = sodium hydroxide, and recall its main role in boiler water (pH/alkalinity control vs. hardness removal) • Focus on which choice is widely used in boiler treatment to precipitate calcium as a removable sludge rather than keep it in solution

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Question 1 of 20

Calcium minerals in boiler water are precipitated out of solution by the use of which of the listed chemicals?

Caustic soda

Phenolphthalein

Sodium hydroxide

Sodium phosphate

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Question 1 / 205eccefa0bacbc34ba4d46f99

Question 1 of 205eccefa0bacbc34ba4d46f99

Calcium minerals in boiler water are precipitated out of solution by the use of which of the listed chemicals?

Back

Question 1 of 20

5eccefa0bacbc34ba4d46f99

Calcium minerals in boiler water are precipitated out of solution by the use of which of the listed chemicals?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed