How much water should be added to 12 ml of 12 alcohol solution to reduce the concentration to 6?
How much water should be added to 12 ml of 12 alcohol solution to reduce the concentration to 6?
So, 88 ml of water will be added to 12 ml of alcohol in order to prepare a concentration 12%.
How many Litres of a 30% alcohol solution should be added to 40 Litres of a 60% alcohol solution to prepare a 50% solution?
75. How many litres of a 30% alcohol solution should be added to 40 litres of a 60% alcohol solution to prepare a 50% solution? \ The ratio in which 30% alcohol and 60% alcohol should be mixed to get 50% alcohol is 1 : 2.
How much water should be added to 10 liters of a 20 %- solution of alcohol to reduce the concentration of alcohol in the solution by 75%?
Most Helpful Expert Reply Right now, we have a 20% solution of alcohol. We need to reduce the concentration of alcohol by 75% i.e. reduce it by 15% to make it 5%. So for every 1 lt of original solution, you need 3 lt of water. So for 10 litres of original solution, you need 30 lt of water.
How many liters of 70% alcohol solution must be added to 50 liters of a 40% alcohol solution to produce a 50% alcohol solution?
TAGS. How many liters of a 70% alcohol solution must be added to 50 liters of a 40% alcohol solution to produce a 50% alcohol solution? Hence Sol 1 will be 25.
What is a 0.1% solution?
0.1% w/v. That means that, for every 100 mL you have 0.1 g. 500 mL. That is the total volume specified. At the quoted concentration then it contains 0.5 g, or 500 mg, of whatever it is that we are talking about.
How do you make a 0.1 M solution of HCl?
Preparation and Standardization of 0.1 M Hydrochloric acid (HCl)
- Take about 100 ml of water in a cleaned and dried 1000 ml volumetric flask.
- Add about 8.5 ml of Conc.
- Add more about 700 ml of water, mix and allow to cool to room temperature.
- Make up the volume 1000 ml with water.
What is the dilution method?
The Dilution method is used to determine the minimal inhibitory concentration of an antimicrobial to inhibit or kill the bacteria/fungi and is the reference for antimicrobial susceptibility testing.
How do you calculate the amount of water needed to dilute a solution?
To make a fixed amount of a dilute solution from a stock solution, you can use the formula: C1V1 = C2V2 where: V1 = Volume of stock solution needed to make the new solution.
How much water do you add to dilute?
We know that the number of gram equivalents in a solution remains the same. V2 = volume of the first solution = ? So the final volume of the solution will be 1000 ml. Hence, (1000−10)=990 ml water should be added to the solution in order to make it decinormal.
How do you calculate serial dilution?
In serial dilutions, you multiply the dilution factors for each step. The dilution factor or the dilution is the initial volume divided by the final volume. For example, if you add a 1 mL sample to 9 mL of diluent to get 10 mL of solution, DF=ViVf = 1mL10mL=110 .
How do you do a 1/20 dilution?
For example, a 1:20 dilution converts to a 1/20 dilution factor. Multiply the final desired volume by the dilution factor to determine the needed volume of the stock solution. In our example, 30 mL x 1 ÷ 20 = 1.5 mL of stock solution.
How do you make a 20% solution?
Add 8.26 mL of concentrated HCl to about 50 mL of distilled water, stir, then add water up to 100 mL. Mass percent solutions are defined based on the grams of solute per 100 grams of solution. Example: 20 g of sodium chloride in 100 g of solution is a 20% by mass solution.
How do you make a 20% glucose solution?
Procedure
- Weight out 20g of glucose (dextrose)
- Add to 70ml of H2O.
- Dissolve by stirring. May use some heat.
- Once the sugar has dissolved, bring the volume of the mix up to 100ml total.
- Autoclave.
How do I make a 50% glucose solution?
50% (w/v) Glucose solution
- Prepare ml of 50% (w/v) glucose solution by mixing g of glucose monohydrate with H2Obidest. Be careful not to add too much water at the beginning. The Glucose dissolved better if the solution is slightly warmed (Microwave, heating plate).
- Make aliquots and autoclave. © 2015-2021 eLabProtocols.
How do you make a 5% sugar solution?
To mix the solution using volume, place 5 g of sucrose into the container and add water to the 100 mL mark.
How many grams of glucose would you need to make 500 ml of an 8% solution?
40 grams
Is a sugar solution acidic or basic?
Sugar and artificial sweeteners are highly acidic foods, which is one of the reasons the consumption of sweets has recently been linked to so many health ailments. Here is a range of foods from the highly acidic (pH2) to the highly alkaline (ph10).
How do you make sugar solution?
Ingredients: Six (6) level teaspoons of Sugar. Half (1/2) level teaspoon of Salt. One Litre of clean drinking or boiled water and then cooled – 5 cupfuls (each cup about 200 ml.)