7. How much pure alcohol should be added to 400 ml of strength 15% to make its strength 32%? (A) 50 ml (B) 75 ml (C) 100 ml (D) 150 ml -8 39

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

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

How much pure alcohol be added to 400mlofa15% solution to make its strength 32%?

How much pure alcohol has to be added to 400 mL of a solution containing 15% of alcohol to change the concentration of alcohol in the mixture to 32%?

How much water should be mixed with 12 mL of alcohol so as to obtain 12 % alcohol solution ?

" How many grams of solute should be added in "100g" water to get a solution of density "1.2g/ml" and strength "5%" ( "w/v" )? "

How much amount of volume of air is in lungs FRC? (A) 2100 ml to 2500 ml (B) 1500 ml to 1600 ml (C) 2500 ml to 3000 ml (D) 1600 ml to 2100 ml