a sample of oil has a mass of 65g and a volume of 80.0ML. What is the specific gravity of the oil?
65/80
To find the specific gravity of the oil, you need to know the density of the oil and the density of water. Specific gravity is defined as the ratio of the density of a substance to the density of water at a specified temperature. Here's how you can calculate it:
1. Determine the density of the oil using the given mass and volume. Density (ρ) is calculated using the formula:
Density = Mass / Volume
In this case, the mass of the oil is given as 65g and the volume is given as 80.0mL:
Density of the oil = 65g / 80.0mL
2. Convert the volume from milliliters to grams if necessary. Since the mass is given in grams, there is no need for conversion.
3. Find the density of water at the specified temperature. The density of water is approximately 1g/mL or 1000kg/m^3 at standard conditions (4 degrees Celsius or 39.2 degrees Fahrenheit).
4. Calculate the specific gravity by dividing the density of the oil by the density of water:
Specific gravity = Density of oil / Density of water
Now, let's plug in the values and calculate the specific gravity:
Density of oil = 65g / 80.0mL
= 0.8125 g/mL
Specific gravity = 0.8125 g/mL / 1 g/mL
= 0.8125
Therefore, the specific gravity of the oil is 0.8125.