You add 6.4g g of iron to 27.80mL mL of water and observe that the volume of iron and water together is 28.61mL mL . Calculate the density of iron.
density = mass/volume
mass = 6.4 grams
volume = 28.61 mL - 27.80 mL = 0.81 mL
density = 6.4 grams/0.81 mL
density of Fe = 7.9 g/mL
hello there friend actually i have this same kind of question that my teacher gave me 2.5g of iron shot is added to a graduated cylinder containing 45.50 ml of water.the water level rises to the 49.10 ml mark, from this information, calculate the denstiy of iron.so, what i did was just use the formula of d=m/v just use the mass that u add to the water in ur case its 6.4g and divide it by 28.61 which is ur new observed volume and get the density of ur fe like that i hope i helped u and i am right hehe :D i probably wont reply anymore as i don't hangout on this site
To calculate the density of iron, you need to use the formula:
Density = Mass / Volume
Where:
Mass = 6.4g (given)
Volume = 28.61mL - 27.80mL = 0.81mL (the difference between the volume of iron and water)
Now, substitute the values into the formula:
Density = 6.4g / 0.81mL = 7.90 g/mL
Therefore, the density of iron is 7.90 g/mL.
To calculate the density of iron, we need to use the formula:
Density = mass / volume
First, we need to find the mass of the iron. The given mass of iron is 6.4 g.
Now, we need to find the volume of iron. We can calculate this by subtracting the initial volume of water from the final volume of the mixture:
Volume of iron = Final volume - Initial volume
= 28.61 mL - 27.80 mL
= 0.81 mL
Finally, we can calculate the density of iron using the formula:
Density = mass / volume
= 6.4 g / 0.81 mL
≈ 7.90 g/mL
Therefore, the density of iron is approximately 7.90 g/mL.