Follow the steps provided in the simulation to add water to the graduated cylind

Question

Follow the steps provided in the simulation to add water to the graduated cylinder, select one of the three samples (copper, silver, or gold), set its mass to the values given in the statements below, find its volume, and calculate its density.

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. For example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g.

Which of the following sets include two samples with an equal density?

11.2g of gold and 14.9g of gold

15.2g copper and 50.0g of copper

15.4g of gold and 18.7g of silver

20.2g of silver and 20.2g of copper

Explanation / Answer

Which of the following sets include two samples with an equal density?

A. 11.2g of gold and 14.9g of gold

B. 15.2g copper and 50.0g of copper

C. 15.4g of gold and 18.7g of silver

D. 20.2g of silver and 20.2g of copper

Correct option: A and B

Density is an intrinsic property of a substance. That is, the density of a substance remains the same irrespective of the mass of substance take.

For example,

11.2 g gold and 14.9 g gold has the same density because both are same element. Difference in mass of two sample of gold, 11.2 g and 14.9 g, does not affect the density of gold.     

Similar, 15.2 g and 50.0 g copper have same density.

# gold and copper has different densities because they are different elements (substance)

# Silver and copper also have different densities.

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