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Answer:
Answer : (1) :-
Volume of water filled in the pycnometer is given as = 9.9872 mL.
Mass of pycnometer when filled with water = 23.1148 g.
Mass of empty pycnometer = 13.1455 g.
So, mass of water = (23.1148 - 13.1455) g. = 9.9693 g.
We know that,
Density = Mass / Volume = (9.9693 g.) / (9.9872 mL) = 0.998 g/mL.
It is observed that the density of water is evaluated to be 0.998 g/mL. We know that, at 4℃ the density of water becomes maximum i.e. 1 g/mL. On the other hand the temperature at which the density of water is 0.998 g/mL is 0℃. Therefore, it can be concluded that the experiment was performed at a temperature of 0℃.
Considering the definition of density and after a short literature search, the density of water is 1.0044 g/mL and the experiment was performed at 4 °C.
First off, keep in mind that density can be defined as the mass of a substance per unit volume, and may be expressed in g/mL.
Now we calculate the mass of the water, using the given masses of the empty and filled pycnometer:
- mass of water = 23.1455 g - 13.1148 g = 10.0307 g
As the pycnometer volume is 9.9872 mL, we can calculate the density of water:
- density = mass / volume = 10.0307 g / 9.9872 mL = 1.0044 g/mL
The density of water varies by temperature, with it being at its highest at 4 °C, with a reported value of 1.00 g/mL. Given that the value obtained in the experiment is above 1 g/mL, it is safe to assume that the experiment was performed at 4 °C.
Learn more about density:
- brainly.com/question/952755
- brainly.com/question/1462554
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