How many liters is 70\% alcohol solution must be added to 50 l of 40\% alcohol solution to produce a 50\% alcohol solution?

So we need to add another 10 liters of alcohol to get to a 50:50 mixture.

What volume of water must be added to 30.0 ml of alcohol to obtain a 40.0 percent volume solution of alcohol?

That is the principal point to understand. The rest is setting up the correct equation. That’s the total volume of the final solution. So that means to the 30 ml alcohol you already have, add 40 ml water.

How much of pure alcohol has to be added to 500 ml of a solution that contains 10\% alcohol in order to change the concentration of alcohol in the mixture of 20 \%?

∴ The required result will be 62.5 ml.

Why is 70\% alcohol better than 40?

70\% IPA solutions penetrate the cell wall more completely which permeates the entire cell, coagulates all proteins, and therefore the microorganism dies. Extra water content slows evaporation, therefore increasing surface contact time and enhancing effectiveness.

What is the solvent in a 70 alcohol solution?

Ethanol is the solvent and water is the solute.

How much pure alcohol should be added to 400 ml of a 15\% solution to make its strength 32\%?

How much pure alcohol must be added to 400 mL of a 15\% solution to make its strength 32\%. Therefore, 100 mL of alcohol should be added to make the strength 32\%. This is the required answer.

How much pure alcohol must be added to 1200 ml of a 20\% solution to make its strength 36 \%?

the answer of this ques is 380ml.

What is 40\% rubbing alcohol used for?

Isopropyl alcohol, particularly in solutions between 60\% and 90\% alcohol with 10 – 40\% purified water, is rapidly antimicrobial against bacteria, fungi, and viruses. Once alcohol concentrations drop below 50\%, usefulness for disinfection drops sharply.

Where we can use a 40\% alcohol solution?

Formulation: Each 100ml contains 40ml of Isopropyl Alcohol Application: For disinfection, sterilization, body massage, relief of prickly heat and insect bites, hygienic purposes or general antiseptic. For use in hospital and sick room or everyday hygiene. Warning: For external use only. Do not swallow or use near eyes.

How do you make 70 alcohol?

Thus, adding 35.35mL of 99\% IPA to 14.65mL of distilled water creates a 50mL solution of 70\% IPA.

How much alcohol must be added to 500 mL of a 60\% solution to make its strength 75\%?

Answer: 125ml should be added to make its strength75\%.

How many liters of alcohol should be added to a solution?

THUS: add 240 liters of 100\% alcohol to your solution. You will end up with 360 liters of alcohol in a total of 720 liters of solution. 50\%. How many liters of pure alcohol must be added to 30 liters of 20\% alcohol solution to make 25\% alcohol solution?

How much alcohol is in 60 liters of alcohol?

So, the answer is: 30 liters of 30\% alcohol has to be added to 60 liters of 60\% alcohol to bring the solution to 50\% alcohol. Here is what it looks like: 60 liters at 60\% means you have 36 liters of alcohol.

How do you make 50\% alcohol from 30\% alcohol?

So, the answer is: 30 liters of 30\% alcohol has to be added to 60 liters of 60\% alcohol to bring the solution to 50\% alcohol. Here is what it looks like: 60 liters with 36 liters of alcohol plus 30 liters with 9 liters of alcohol (30\%) 36 plus 9 equals 45 liters of alcohol in 60 plus 30 equals 90 liters of solution. 45 is 50\% of 90.

How much pure alcohol is in 100ml of 40\% alcohol?

Since total amount of pure alcohol to be added contained in each solution should be the same as the amount of Pure alcohol obtained as a mixture of both therefore, 100 ml of 40\% pure alcohol contains 40 ml alcohol and 60ml water . 40X/100 = 2X/5 ml pure alcohol. Similarly,100 ml 60\% alcohol has 60ml pure alcohol and 40 ml water.