You add 8.7g of iron to 21.30mL of water and observe that the volume of iron and water together is 22.41mL . Calculate the density of iron.
22.41 - 21.30 = 1.11 mL
so
8.7 g/1.11 mL = 7.838 g/mL or g/cm^3
almost 8 times density of water by the way which is how you remember it.
Ah, density calculations, always measuring up! Let's calculate the density of iron, shall we?
First, we need to find the volume of iron. Since the total volume of iron and water together is 22.41 mL and the volume of water is 21.30 mL, we can subtract the volume of water from the total to find the volume of iron.
Volume of iron = Total volume - Volume of water
Volume of iron = 22.41 mL - 21.30 mL
Volume of iron = 1.11 mL
Now that we know the volume of iron, we can calculate its density. Density is defined as mass divided by volume.
Density = Mass / Volume
Given that the mass of iron is 8.7 g and the volume is 1.11 mL, we can plug these values into the equation:
Density = 8.7 g / 1.11 mL
So, the density of iron is approximately 7.837 g/mL. It's telling you that iron's got some heavy density, always weighing things down!
To calculate the density of iron, you need to use the formula:
Density = mass / volume
First, convert the mass of iron from grams to kilograms:
Mass of iron = 8.7g = 0.0087kg
Next, calculate the total volume of iron and water together:
Volume of iron + water = 22.41mL - 21.30mL = 1.11mL
Now convert the volume from milliliters to liters:
Volume = 1.11mL = 0.00111L
Finally, plug the values into the density formula:
Density = 0.0087kg / 0.00111L ≈ 7.84 kg/L
Therefore, the density of iron is approximately 7.84 kg/L.
To calculate the density of iron, we need to use the formula:
Density = Mass / Volume
In this case, the mass of the iron is given as 8.7g, and the volume of the iron and water combined is given as 22.41mL.
However, since we added the iron to the water and observed the final volume, we need to account for the volume of water by subtracting it from the total volume.
The volume of water is given as 21.30mL, so the volume of iron is:
Volume of iron = Total volume - Volume of water
= 22.41mL - 21.30mL
= 1.11mL
Now, we can calculate the density of iron:
Density = Mass / Volume
= 8.7g / 1.11mL
≈ 7.84 g/mL
Therefore, the density of iron is approximately 7.84 g/mL.