Question

what is the molarity of pure water at 4°c

Answer 1

Hey,

One liter of water at 4°C = 999.9750 grams 

MW of water = 18.015 g/mole 

so: 

(999.9750 grams of water /liter)/(18.015 grams/mole) = 

55.508 moles/liter = 55.508M

HOPE IT HELPS:-))

Answer 2

Answer:

The molarity of pure water at 4° c is 55.56 mol per liter.

Explanation:

The density of pure water at 4°c is 1 gram per cubic centimeter or 1 gram/millimeter.

The mass of 1 liter at 4°c =  1000 grams (or 1 kilogram).

Now,

1000 grams of water= 1000/18 moles of water

This means that 1000 grams of water will contain 55.56 moles of water. Now we will find the molarity. Molarity is the ratio between the number of moles of solute and the volume of the solution. Therefore, the molar concentration of water at this temperature is equal to 55.56 mol / liter.

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