In the lab you completed in class you had to find the mass and the volume of the three objects, so then you could find the density by using the equation D=m/v . You also had to use the displacement method to find the volume of your stone before you could find its density. Using what you learned in class answer the following question: The mass of a length of metal wire is 45 g. When the wire is placed in a graduated cylinder with water, it displaces 5 mL of water. What is the density of the metal?
To find the density of the metal wire, we can use the displacement method. The displacement method states that the volume of an object can be calculated by measuring the amount of water it displaces when submerged.
Given that the wire displaces 5 mL of water, we can use this value as the volume of the wire (V = 5 mL).
The mass of the metal wire is given as 45 g (m = 45 g).
To find the density (D), we can use the formula D = m/V.
Substituting the values m = 45 g and V = 5 mL into the formula, we get:
D = 45 g / 5 mL
Since the volume is given in milliliters (mL) and density is typically expressed in grams per milliliter (g/mL), the units cancel out:
D = 45 g / 5 mL
D = 9 g/mL
Therefore, the density of the metal wire is 9 g/mL.