Answer:
12.54mL
Explanation:
Step 1:
Data obtained from the question:
Mass of Zn = 2.95g
Density of Zn = 7.14 g/mL
Volume of water = 12.13mL
Final volume reading of cylinder =..?
Step 2:
Determination of the volume of Zn. The volume of Zn can be obtained as follow:
Density = Mass /volume
7.14 = 2.95/volume
Cross multiply
7.14 x Volume = 2.95
Divide both side by 7.14
Volume = 2.95/7.14
Volume of Zn = 0.41mL
Step 3:
Determination of the final volume reading of the cylinder.
The final reading of the cylinder will be the addition of the volume of water and the volume of Zn as shown below:
Final volume of cylinder = volume of water + volume of Zn.
Volume of water = 12.13mL
Volume of Zn = 0.41mL
Final volume =..?
Final volume of cylinder = 12.13 + 0.41
Final volume of cylinder = 12.54mL
Therefore, the final volume reading of the cylinder is 12.54mL
The final volume reading of the graduated cylinder is 12.54 mL.
A 2.95 g piece of zinc (density = 7.14 g/mL) is added to a graduated cylinder. The volume of the piece of zinc is:
[tex]2.95 g \times \frac{1mL}{7.14 g} = 0.413 mL[/tex]
The final volume reading of the graduated cylinder will be equal to the sum of the volumes of the piece of zinc and the water.
[tex]V = V(H_2O)+V(Zn) = 12.13 mL + 0.413 mL = 12.54 mL[/tex]
The final volume reading of the graduated cylinder is 12.54 mL.
You can learn more about density here: https://brainly.com/question/24386693
