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3 years ago

What is the freezing point (in C) of a 1.56 m aqueous solution of CaCl2? (Amount to three decimal points)

2 answers:

4 0

Supposing complete ionization:
CaCl2 → Ca{2+} + 2 Cl{-} [three ions total] 

(1.56 m CaCl2) x (3 mol ions / 1 mol CaCl2) = 4.68 m ions 

(1.86 °C/m) x (4.68 m) = 8.70 °C change 

0°C - 8.70°C = - 8.70°C

Bogdan [553]3 years ago

4 0

The answer that was correct for me was 25.687 degrees C

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What is the pH range for an acid? 0-7 7-14 7 0

olga nikolaevna [1]

<h3>Answer: Choice A) 0-7</h3>

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If the pH is between 0 and 7, then we have an acid.

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Plasmas of great interest to scientists or manufacturers as

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3 years ago

Salt in crude oil must be removed before the oil undergoes processing in a refinery. The

irina1246 [14]

Answer:

$\large \boxed{0.64 \, \%}$

Explanation:

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Assume the oil has a density of 0.86 g/mL.

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3. Calculate the mass of salt in the spent water

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