Answer
$$0.141 \space mm$$
Work Step by Step
1. Calculate the volume of each wafer:
$$density = \frac{mass}{volume} \longrightarrow volume = \frac{mass}{density}$$ $$V_{wafer} = \frac{1.50 \space g}{2.33 \space g/cm^3} = 0.644 \space cm^3$$
2. Find the height (h) of the cylinder. Remember to convert the diameter to centimeters.
$$r = \frac{d}{2} = \frac{3.00 \space in.}{2} = 1.50 \space in.$$ $$r = 1.50 \space in. \times \frac{2.54 \space cm}{1 \space in.} = 3.81 \space cm$$
$$V = \pi r^2 h$$ $$(0.644 \space cm^3) = \pi (3.81 \space cm)^2 h$$ $$\frac{0.644 \space cm^3}{(3.81 \space cm)^2 (\pi)} = h$$ $$h = 0.0141 \space cm$$ $$h = 0.0141 \space cm \times \frac{10 \space mm}{1 \space cm} = 0.141 \space mm$$
