0
How many ml of 50 percent dextrose solution are needed to obtain 25 g of dextrose?
Wiki User
∙ 10y ago
694 mL of glucose solution 0,2 M are needed.
Wiki User
∙ 7y ago
Wiki User
∙ 7y agomoles glucose needed = 25.0 g x 1mol/186 g = 0.139 moles
voluem of 0.2 M needed: (x L)(0.2 mol/L) = 0.139 moles
x = 0.694 L = 694 mls
Wiki User
∙ 8y ago30 ml 50% dextrose + 70 ml water
Wiki User
∙ 10y ago25
Anonymous
25
Add your answer:
Earn +20 pts
How many liters can a garbage can 13 inches by 20 inches hold?
You are missing a measurement to obtain volume. A height it going to be needed.
How should you prepare a 4M solution of MgSO4?
BY adding excess Filter off excess MgCO3(s) . heat the filter to get a saturated solution , cool to obtain crystals , filter . H2SO4(aq)+MgCO3(s)--->MgSO4(aq)+H2CO3(g)
Scientists that study to obtain knowledge are called scientists?
pure
What do you make when you use your senses to obtain the information?
When you use your senses to obtain information, you are making an observation. This is a major part of science where you use your senses or the readings of instruments to directly acquire information from a primary source.
To obtain the station pressure you must normally make corrections for?
Temperature and gravity.
A pharmacist mixed a 20 percent solution with a 30 percent solution to obtain 100 liters of a 24 percent solution How much of the 20 percent solution did the pharmacist use in the mixture?
A pharmacist mixed a 20 percent solution with a 30 percent solution to obtain 100 liters of a 24 percent solution. How much of the 20 percent solution did the pharmacist use in the mixture (in liters).
Pharmacist mixed a 20 percent solution with a 30 percent solution to obtain 100 liters of a 24 percent solution How much of the 20 percent solution did the pharmacist use in the mixture?
10
How much of an 18 percent solution of sulfuric acid should be added to 360 ml of a 10 percent solution to obtain a 15 percent solution?
600ml.
How many gallons of a 9 percent salt solution must be mixed with 25 gallons of a 31 percent solution to obtain a 20 percent solution?
25 gallons
How many liters of a 20 percent solution of acid should be added to 10 liters of a 30 percent solution of acid to obtain a 25 percent solution?
10 liters.
50 percent dextrose solution and you need a 1 percent dextrose soultion. How do you figure that out?
If the percents given are by weight or mass, this is very straightforward: The ratio between the desired percentage and the initial percentage is 1/50. Therefore, a given mass of initial solution must be diluted to 50 times its original mass to obtain the desired lower concentration, or in other words, 49 parts of diluent must be mixed with each part of initial solution. If the percents involve volume measurements, it would be necessary to take into account and change in density occasioned by the dilution.
How much water must be added to 12 L of a 40 percent solution of alcohol to obtain a 30 percent solution?
4 litres
How many gallons of 3 percent salt solution must be mixed with 50 gallons of 7 percent salt solution to obtain a 5 percent salt solution?
50 gallons @ 3% must be added.
How many grams of sugar must be added to 60 grams of a solution that is 32 percent sugar to obtain a solution that is 50 percent sugar?
40.8 grams
How many qt of pure antifreeze must be added to 3 qt of a 10 percent antifreeze solution obtain a 20 percent antifreeze solution?
0.6 of a pint.
How much of water should be add to obtain a solution that is twenty percent antifreeze?
80% water
How many milliliters of 11.4M HCl solution are needed to obtain 0.260mol of HCl?
28 milliliters
