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Multiple Choice
Ethyl alcohol has a specific gravity of 0.7892 at 10ºC. What is the volume of 250 g of ethyl alcohol?
A
317 mL
B
197 mL
C
320 mL
D
371 mL
Verified step by step guidance
1
Understand that specific gravity is the ratio of the density of a substance to the density of a reference substance, typically water at 4ºC, which has a density of 1 g/mL.
Recognize that the specific gravity of ethyl alcohol is given as 0.7892, which means its density is 0.7892 g/mL at 10ºC.
Use the formula for density: \( \text{Density} = \frac{\text{Mass}}{\text{Volume}} \). Rearrange this to find volume: \( \text{Volume} = \frac{\text{Mass}}{\text{Density}} \).
Substitute the given mass of ethyl alcohol (250 g) and its density (0.7892 g/mL) into the formula: \( \text{Volume} = \frac{250 \text{ g}}{0.7892 \text{ g/mL}} \).
Calculate the volume using the formula to find the volume in milliliters, which will give you the answer.