Textbook Question
Use the density values in TABLE 2.8 to solve each of the following problems:
a. A graduated cylinder contains 18.0 mL of water. What is the new water level, in milliliters, after 35.6 g of silver metal is submerged in the water?
1. Matter and Measurements
Density of Non-Geometric Objects
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A piece of unknown solid weighs approximately 0.045 lbs. When a scientist places it in a glass beaker the water level increases from 200 mL to 260 mL. What is the density of the unknown solid in g/mL?
A
0.5 g/mL
B
0..2 g/mL
C
0.0007 g/mL
D
2.9 g/mL
E
0.3 g/mL
Verified step by step guidance1
Convert the weight of the solid from pounds to grams. Use the conversion factor: 1 lb = 453.592 grams.
Calculate the volume of the solid using the water displacement method. Subtract the initial water level (200 mL) from the final water level (260 mL) to find the volume of the solid in mL.
Use the formula for density: \( \text{Density} = \frac{\text{Mass}}{\text{Volume}} \). Substitute the mass in grams and the volume in mL into this formula.
Simplify the expression to find the density of the solid in g/mL.
Compare the calculated density with the given options to determine the correct answer.
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