An object made of aluminum has a mass of 8.37g. When it was placed in a graduated cylinder containing 20.0ml of water, the water level rose to 23.1ml. Calculate the specific gravity of the object?
volume = 23.1-23.0 = ?cc
mass = 8.73 g
density = mass/volume
2.7 g/mL
To calculate the specific gravity of the object, you need to determine the density of the object and compare it to the density of water.
Step 1: Calculate the volume of the object in milliliters (ml).
The volume of water displaced by the object is equal to the volume of the object. The water level rose from 20.0ml to 23.1ml, so the volume of the object is 23.1ml - 20.0ml = 3.1ml.
Step 2: Convert the mass of the object from grams (g) to milliliters (ml).
Since 1g of water has a volume of 1ml, you can assume that the mass and volume of the object in milliliters are equal. Therefore, the volume of the object is also 8.37ml.
Step 3: Calculate the specific gravity.
The specific gravity is the ratio of the density of the object to the density of water.
Density = Mass / Volume
Density of the object = 8.37g / 8.37ml = 1g/ml
Density of water = 1g/ml
Specific gravity = Density of the object / Density of water = 1g/ml / 1g/ml = 1
Therefore, the specific gravity of the object is 1.
To calculate the specific gravity of an object, you need to compare its density to the density of a reference material. In this case, the reference material is water.
The formula for specific gravity is:
Specific Gravity = Density of object / Density of water
To find the density of the aluminum object, you need to know its mass and volume. The mass is given as 8.37g. The volume of the object can be calculated by finding the difference in the water levels before and after it was placed in the graduated cylinder.
Initial water level = 20.0ml
Water level after adding the object = 23.1ml
Volume of the object = (23.1ml - 20.0ml)
Now, calculate the density of the aluminum object:
Density = Mass / Volume
Density = 8.37g / (23.1ml - 20.0ml)
After calculating the density of the aluminum object, divide it by the density of water. The density of water is approximately 1g/ml.
Specific Gravity = Density of aluminum object / Density of water
Specific Gravity = (Density of aluminum object) / 1g/ml
By performing these calculations, you can determine the specific gravity of the aluminum object.