a graduated cylinder is filled with water to a level of 40.0 mL. when a piece of copper is lowered into the cylinder, the water rises to 63.4 mL. find the volume of the copper sample.

63.4 - 40.0

23.4

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To find the volume of the copper sample, we need to calculate the difference in the water levels before and after the copper was added.

Step 1: Calculate the initial water level:
The graduated cylinder was filled with water up to a level of 40.0 mL. This is the initial water level.

Step 2: Calculate the final water level:
When the copper is added, the water level rises to 63.4 mL. This is the final water level.

Step 3: Calculate the difference in water levels:
The volume of the copper sample is equal to the difference between the final and initial water levels.

Final Water Level - Initial Water Level = Volume of Copper Sample
63.4 mL - 40.0 mL = 23.4 mL

Therefore, the volume of the copper sample is 23.4 mL.