how could you identify a pure metal if you have a balance, a graduated cylinder and a table of densities for metals?
Weight the metal. Then partly fill the graduated cylinder with water and read the water mark. Drop in the metal and read the new water mark. This will be the volume. Calculate the density and compare with the list available. Bingo.
I don't get that I'm confused,and this is my homework that's due tomorrow
Don't understand
I found this answer helpful but don't forget to divide the mass by the volume.
dude
To identify a pure metal using a balance, a graduated cylinder, and a table of densities for metals, you can follow these steps:
1. Measure the mass of the metal: Use the balance to measure the mass of the metal sample you have. Write down the measured value.
2. Measure the volume of the metal: Fill the graduated cylinder with water, ensuring it is completely submersed. Record the initial volume of water. Carefully lower the metal sample into the graduated cylinder, making sure it is fully submerged in the water. Read the new volume of water on the graduated cylinder.
3. Calculate the density: The density of a substance is equal to its mass divided by its volume. Use the mass you measured in Step 1 and the volume you obtained from Step 2 to calculate the density.
Density = Mass / Volume
4. Compare the density: Check the table of densities for metals and find the density that matches the value you calculated in Step 3. Each metal has a unique density, so if your calculated density matches one in the table, you can identify the metal.
Note: Make sure to use the same units for mass, volume, and density (e.g., grams and cubic centimeters). If the density you calculated does not match any values in the table, it's possible that the metal may be impure or it might not be included in the table. In such cases, additional testing or analysis may be required to determine its composition.