At STP, pure ethanol has density 0.789g/mL. 25 mL will have mass
25 (mL) * 0.789 (g/mL)=19.725 g. Round this to 19.7g for three significant figures.
The molar mass of ethanol is 46g/mol. Using the formula mass = (molar mass) x (no. of moles), the mass of 0.5623mol of ethanol is approximately 25.9g.
0.282
The SI or international system of measurement base unit of mass is not the milliliter. The SI base unit of mass is the kilogram.
15.5 gram ethanol x 1 mL/0.789 (density) = 19.65 mL the density of ethanol is 0.789g/mL
For water, 1 gram.
Divide the mass of the ethanol by the sum of the mass of the ethanol + that of the water and multiply by 100. Mass ethanol/(Mass ethanol + mass H2O) (x100)
The molar mass of ethanol is 46g/mol. Using the formula mass = (molar mass) x (no. of moles), the mass of 0.5623mol of ethanol is approximately 25.9g.
mass in mg. of ethanol of 5*1020 molecules of ethanol
Multiply each by their densitiesget their summationdivide the summation by 120
250 ml
Answer: 250 ml = 8.45350 fl.oz. (US)
A milliliter is a unit that is used to measure liquid volume. The mass of one milliliter of a substance would vary greatly depending on the substance.
250 ml = 8.45 US fluid ounces.
250 ml = 8.45 US fluid ounces
Density mercury ≈ 5.43 g/ml. Density alcohol (ethanol) ≈ 0.789 g/ml. mass = density x volume ⇒ mass mercury ≈ 5.43 g/ml x 3.48 ml ≈ 18.90 g ⇒ mass alcohol ≈ 0.789 g/ml x 60.0 ml ≈ 47.34 g ⇒ 60.0 ml of alcohol has more mass than 3.48 ml of mercury.
250,000
250 ml