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Stolb23 [73]
3 years ago
12

Which list describes the properties of a liquid?

Chemistry
2 answers:
Svetach [21]3 years ago
8 0
The particles of the liquid are not as compact as that of the solid. That is why their shapes are not definite. However, its volume is fixed. Thus, liquids have fixed volume but takes the shape of its container. Thus, the answer to this question is letter B. 
iris [78.8K]3 years ago
3 0
It is B: Fixed volume, takes the shape of the container
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A 30.7 g sample of Strontium nitrate, Sr(NO3)2•nH2O, is heated to a constant mass of 22.9 g. Calculate the hydration number.
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Explanation:

<u>1) Mass of water in the hydrated compound</u>

Mass of water = Mass of the hydrated sample - mass of the dehydrated compound

Mass of water = 30.7 g - 22.9 g = 7.8 g

<u>2) Number of moles of water</u>

  • Number of moles = mass in grams / molar mass

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<u>3) Number of moles of Strontium nitrate dehydrated, Sr (NO₃)₂</u>

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  • Number of moles of Sr (NO₃)₂ = 22.9 g / 211.63 g/mol =  0.108 mol

<u>4) Ratio</u>

  • 0.439 mol H₂O / 0.108 mol Sr(NO₃)₂ ≈  4 mol H₂O : 1 mol Sr (NO₃)₂

Which means that the hydration number is 4.

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