Percent Concentration - Page 3
Questions
- How does the concentration of an alcohol - water solution affect the volume contraction?
- How much water should be evaporated from 20 L of a 20% salt solution to increase it to a 25% salt solution?
- What is the percent by mass of a solution that is prepared by mixing 3.785 grams of sodium chloride with 43.7 milliliters of water (assume the density of water is 1.00 g/mL)? Thanks!?
- How many liters of 20% alcohol solution should be added to 40 liters of a 50% alcohol solution to make a 30% solution?
- How do you make a #600*mL# volume of #20%*("w/w")# caustic soda in water?
- I have 2oz concentrated 40% aqueous solution, I want to dilute it 10% , How I dilute it ??? Please I need you kind help. Thank you
- How many millilieters of a 12% (v/v) propyl alcohol solution would you need to obtain 5.7 mL of propyl alcohol?
- If a solution has a #40%# mass (in grams)to volume (in milliliters) ratio; what will be the volume corresponding to a mass of 70 grams?
- An aqueous solution of 3.47 M silver nitrate, #AgNO_3#, has a density of 1.47 g/mL. What is percent by mass of #AgNO_3# in the solution?
- An aqueous solution of 4.62 M potassium bromide, KBr, has a density of 1.37 g/mL. What is the percent by mass of KBr in the solution?
- A chemist has one solution containing 30% insecticide and another solution containing 50% insecticide. How much of each solution should the chemist mix to get 200 L of a 42% insecticide?
- How many liters of a solution containing 45% acid must be mixed with a solution containing 60% acid to obtain 40 liters of a 48% acid solution?
- A solution is made by dissolving 3.60g of sodium chloride to a final volume of 115mL solution. What is the weight/volume percent of the solute?
- What are the mole fractions of hydrochloric acid #("HCl")# and water in a #20%# #"w/w"# aqueous #"HCl"# solution?
- What do we mean by percentage concentration?
- How many grams of HCI are there in 100.0 mL of concentrated HCl which is approximately 12.1M and 37% HCl by weight and the density of 1.191 g/mL?
- What mass of a 10 % solution must I add to a 20 % solution to get 500 g of a 17.5 % solution?
- What mass of a 0.337% KCN solution contains 696 mg of KCN? Thank you!
- If a solution is 0.5% (w/v), how many mg/ml is that?
- A sample of seawater contains 6.277 g of sodium chloride per liter of solution. How many mg of sodium chloride would be contained in 15.0 mL of this solution?