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ddd [48]
3 years ago
6

Why is calgon conditioning better than phosphate conditioning?

Chemistry
1 answer:
tekilochka [14]3 years ago
6 0
<span>Calgon conditioning is better than phosphate conditioning because it forms a water soluble complex Na2[Ca2(PO3)6] and does not form even scales.
hope this helps</span>
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Consider the reaction: HCN (aq) + H2O (l) ⇄ CN- (aq) + H3O + (aq) Which of the following statements will decrease the amount of
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4 0
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He balanced equation for the reaction of acetylene, c2h2, and oxygen in an acetylene torch is 2 c2h2 + 5 o2 → 4 co2 + 2 h2o. in
pickupchik [31]
Answer: 0.4 g

Explanation:

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2 mol C2h2 : 5 mol O2

4) Convert 0.13 g C2H2 into number of moles

n = mass in grams / molar mass

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n = 0.13 g / 26 g/mol = 0.005 mol

5) Set the proportion with the unknown

5 mol O2             x
----------------- = ---------------
2 mol C2H2      0.005 mol C2H2

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6) Convert 0.0125 mol O2 to grams

mass = number of moles * molar mass

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Answer: 0.4 g
8 0
3 years ago
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