Question

a certain substance has specific gravity = 1.34. what is its density in units of pounds per cubic foot. express your answer at three significant figures. {density(water) = 62.4 lb/ft3}

Explanation:

Step1: Recall the formula for specific gravity

Specific gravity (SG) = $\frac{\text{Density of substance}}{\text{Density of water}}$.

Step2: Rearrange the formula to solve for density of substance

Density of substance = SG $\times$ Density of water.

Step3: Substitute the given values

Given SG = 1.34 and density of water = 62.4 lb/ft³. So, density of substance = 1.34 $\times$ 62.4 lb/ft³.

Step4: Calculate the result

1.34 $\times$ 62.4 = 83.616 lb/ft³.

Step5: Round to three significant figures

83.6 lb/ft³.

Answer:

83.6 lb/ft³