Question

If 3.64 g of sand is separated from 5.24 g of a mixture of salt and sand, what is the percentage of sand in the sample?

Answer 1

To calculate the percentage of sand in the sample, subtract the mass of sand separated from the mass of the mixture, then divide the mass of sand by the mass of the mixture and multiply by 100.

Step-by-step explanation:

To find the percentage of sand in the sample, we need to first calculate the mass of sand present in the mixture. We subtract the mass of sand that was separated (3.64 g) from the mass of the mixture (5.24 g). The resulting mass is the mass of the salt in the mixture.

Next, we calculate the percentage of sand by dividing the mass of sand by the mass of the mixture (5.24 g) and multiplying by 100.

Percentage of sand in the sample = (3.64 g / 5.24 g) x 100% = 69.47%.