Questions LLC
Login
or
Sign Up
Ask a New Question
Chemistry
Laboratory Techniques
Preparing Solutions
A stock solution of ethanol is made by weighing out the correct amount of absolute ethanol in a tared beaker containing 15 ml of water. Why is it necessary to add water to the beaker before adding the ethanol?
1 answer
http://www.jiskha.com/display.cgi?id=1385421423
You can
ask a new question
or
answer this question
.
Related Questions
The vapor pressures of ethanol (C2H5OH) and 1-propanol (C3H7OH) are 100 mmHg and 37.6 mmHg, respectively. Assume ideal behavior
What is the mass/ vol% ethanol in an ethanol water solution with density of 0.875g/ml and containing 65% ethanol by volume? The
Using ethanol’s density of 0.789 g/mL, calculate the molarity of ethanol in a beer marked as 5.6%
alcohol. (Hint: 5.6% means
Ethanol can also be manufactured from glucose, C6H12O6.
C6H12O6 2CO2 + 2C2H5OH. A solution containing 18 kg of glucose makes only
A student drops an object weighing 10.89 g into a 100.00 mL of ethanol in a measuring cylinder. An unknown volume of ethanol
if a solution contains 255mL of ethanol and 375 mL ofwater, what is the percent of ethanol in the soution
What mass of water must be used to dissolve 20.0 grams of ethanol, C2H5OH, to prepare a 0.0500 molal solution of ethanol?
The density of an aqueous solution containing 10% of ethanol (C2H5OH) by mass is 0.984 g/ml.
A) Calculate the molality of this
An aqueous solution of ethanol is 14.1M C2H5OH. The density of the solution is 0.853g/mL. What is molality of ethanol in the
Calculate the molality of ethanol in a solution of water, if the mole fraction of ethanol is
0.300.