Changes of state and the particle model

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Question 22
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A student found an irregular mineral specimen. To help identify the mineral, the student made measurements and determined its density to be 4.75±0.15 g/cm34.75 \pm 0.15\text{ g/cm}^34.75±0.15 g/cm3.

a.

State the minimum and maximum values for the density of this specimen.

[2]
b.

Table 1 shows the reference densities for five different minerals.

Table 1

MineralDensity in g/cm3\text{g/cm}^3g/cm3
Pyrite5.00±0.155.00 \pm 0.155.00±0.15
Hematite5.10±0.105.10 \pm 0.105.10±0.10
Ilmenite4.70±0.104.70 \pm 0.104.70±0.10
Chromite4.40±0.104.40 \pm 0.104.40±0.10
Chalcopyrite4.20±0.154.20 \pm 0.154.20±0.15

Which two minerals from Table 1 could be the specimen the student found? Explain your answer.

[3]

Changes of state and the particle model Questions

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