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The density of ethanol has been measured to be 789 g/L. Calculate the mass of 305 mL of ethanol. The density of ethanol is 0.789 g/cm3 at 20 degrees C. What volume of ethanol has a mass of 15.5 grams? An Erlenmeyer flask has a mass of 109.89 g. Upon addition of 30.00 mL of ethanol, the mass of the flask was 134.22 g.
To determine the density of ethanol, a student pipets a 5.00 mL sample into an empty flask weighing 15.246 g. He finds that the mass of the flask + ethanol = 19.171 g. Using correct significant figures, find the density of ethanol. What should the density and purity of ethanol be in a fermentation mixture before distillation?
So, ethanol has a density of 0.785 g mL−1, which is equivalent to saying that if you take exactly 1 mL of ethanol and weigh it, you will end up with a mass of 0.785 g. Now, you know that the volume you're using has a mass of 83.3 g. Well, if you get 0.785 g for every 1 mL of ethanol, it follows that this much mass will correspond to a volume ...
Density is the amount of matter in an object compared to its volume (the amount of space it takes up). If an object were extremely dense, it would feel heavier than another object of the same size that was less dense. For example, a 1-litre soda bottle filled with air would feel much lighter than the same bottle filled with water. Water has a density of 1 kilogram per liter, while air has a ...
To determine the density of ethanol, a student pipets a 5.00 mL sample into an empty flask weighing 15.246 g. He finds that the mass of the flask + ethanol = 19.171 g. Using correct significant figures, find the density of ethanol. Ethanol (grain alcohol) has a density of 0.789 g/cm^3.
This v/v means ethanol concentration is 70 \ mL in every 100 \ mL. Using laboratory scales what is the mass of pure liquid ethanol should you weigh out to make 1.25 \ L of 70% v/v. Assume the density of ethanol is 0.789 \ g/mL. The density of ethanol is 0.789 g/mL at 20 degrees Celsius.
To determine the density of ethanol, a student pipets a 5.00 mL sample into an empty flask weighing 15.246 g. He finds that the mass of the flask + ethanol = 19.171 g. Using correct significant figures, find the density of ethanol. The mass of a 50-mL volumetric flask is 40.638 g.
The density of ethanol has been measured to be 789 g/L. Calculate the mass of 305 mL of ethanol. If 15 drops of ethanol from a medicine dropper weigh 0.80 grams, how many drops does it take from the dropper to dispense 1.0 mL of ethanol? The density of ethanol is 0.80 g/mL. Pure ethanol has a density of 0.75 g / ml at 25 degree C.
In a GC experiment, a student injects 2.0 mu L of a 20% ethanol/water solution into the GC. Calculate the weight of ethanol that has been injected. (The density of ethanol is 0.789 gm/mL at 20 deg C.) A student weighs out 1.394 g of t-butyl alcohol into a large test tube and measures the freezing point of the pure solvent to be 21.50 degrees ...
Explain what happens to the density of ethanol if it is warmed from room temperature to 50^oC. How does the entropy of the system change when: a.) the temperature of the system increases b.) the volume of a gas increases c.) equal volumes of ethanol and water are mixed to form a solution