The mass of an empty flsk is 49.74 g. what is the mass of the flask filled with acetone ( d = 0.792 g/mL) if the same flask weighs 75.2 g. when filled with water?
mass flask + H2O = 75.2g
mass empty flask = -49.74
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.........mass H2O = ??
density H2O = 1.00g/mL, solve for volume water. volume H2O =mass H2O/density H2O.
Then mass acetone = volume acetone (volume of H2O that is) x density acetone.
Add mass acetone to mass empty flask.
69.9
To find the mass of the flask filled with acetone, we need to know the difference in mass between the flask filled with water and the flask filled with acetone.
The mass of the empty flask is given as 49.74 g.
When filled with water, the mass of the flask is 75.2 g.
Therefore, the difference in mass between the two is:
75.2 g - 49.74 g = 25.46 g
Now, we need to find the mass of acetone that will correspond to this difference in mass.
The density of acetone is given as 0.792 g/mL.
We can use the formula: mass = density × volume.
To find the volume of acetone that corresponds to the difference in mass, we divide the mass by the density:
Volume = mass / density
= 25.46 g / (0.792 g/mL)
= 32.23 mL
Therefore, the mass of the flask filled with acetone will be equal to the mass of the empty flask (49.74 g) + the mass of the acetone (25.46 g).
Mass of flask + acetone = 49.74 g + 25.46 g = 75.2 g.
So, the mass of the flask filled with acetone is 75.2 g.
To find the mass of the flask filled with acetone, we need to subtract the mass of the empty flask from the total mass of the flask filled with acetone.
First, let's find the mass of water filled in the flask:
Mass of water = Total mass of filled flask - Mass of empty flask
Given:
Mass of empty flask = 49.74 g
Total mass of filled flask with water = 75.2 g
Substituting the values:
Mass of water = 75.2 g - 49.74 g
Mass of water = 25.46 g
Now, we need to find the mass of acetone in the flask. To do that, we can use the density of acetone and the volume of acetone in the flask.
The density of acetone (d) = 0.792 g/mL
To find the volume of water in the flask, we can use the formula:
Volume = Mass / Density
Given:
Mass of acetone = Mass of water = 25.46 g
Density of acetone = 0.792 g/mL
Volume of acetone = Mass of acetone / Density of acetone
Volume of acetone = 25.46 g / 0.792 g/mL
Volume of acetone = 32.19 mL
Finally, to find the mass of the flask filled with acetone, we can use the formula:
Mass = Mass of empty flask + Mass of acetone
Given:
Mass of empty flask = 49.74 g
Mass of acetone = Mass of water = 25.46 g
Mass of flask filled with acetone = 49.74 g + 25.46 g
Mass of flask filled with acetone = 75.2 g
Therefore, the mass of the flask filled with acetone is 75.2 g.