Percent Concentration - Page 2
Questions
- 20mL of orange juice (citric acid), weighing 20.31g, was neutralized by 20.4mL, 0.0900M of NaOH. Given the following equation: C6H8O7 + 3NaOH --> Na3C6H5O7 + H2O. What is the percentage by mass of citric acid in the orange juice?
- How many milliliters of alcohol are in 167 mL of an 85.0% (v/v) alcohol solution?
- What is the percent by mass of #NaHCO_3# in a solution containing 50 g #NaHCO_3# dissolved in 750 mL of water?
- If we have #5.5%# #"m/m"# solution with respect to a solution....what is the mass of solute in a #2000*g# mass of solution...?
- A pharmacist has one solution that is 40% iodine and 60% water, and another solution that is 3% iodine. How many liters of each solution should the pharmacist use to make 11 liters of a solution that is 19% iodine?
- What is the mass percent (m/m) concentration of a solution of 10.0 g of sodium chloride in 100 g of solution?
- A solution of HCl in water has a density of 1.1 g/mL. What is the mass% of HCl in the solution if 150 mL of the solution contains 30. g of HCl?
- Limewater is used to find out if #"CO"_2# is present. How much (in grams) of limestone, that contains 95% calcium carbonate will we need to get 80g 7% of limewater?
- Emily mixed together 9 gal. of Brand A fruit drink and 8 gal. of Brand B fruit drink which contains 48% fruit juice. What is the percent of fruit juice in Brand A if the mixture contained 30% fruit juice?
- If 17.8 grams of #KOH# dissolve in enough water to make a 198-gram solution, what is the concentration in percent by mass?
- How much would a dosage of 12ml 10% Potassium Iodide (KI) w/v solution increase Iodide levels in a total voluve of 800 liters?
- An ammonia solution is 6.00 M and the density is 0.950 g mL. What is the mass/mass percent concentration of #NH_3# (17.03 g/mol)?
- The molecular mass of albumin is 60 kDa. What is the concentration of a 1.2 % m/m solution of albumin in milligrams per millilitre? What is the molar concentration?
- How many pints of each 2 percent and 7 percent acid solutions must be mixed to obtain 50 pints of a 5 percent solution?
- What is the concentration with respect to #g*L^-1# of a solution prepared by dissolving #1.72*g# of #"potassium permanganate"# in #60.0*mL# of water?
- What is the mass of a #"7% HCl"# solution in which #"45.0 HCl"# has been dissolved?
- An after shave lotion contains 50% ethyl alcohol. How much water must be added to 6 fluid ounces of this lotion to reduce it to one which is 75% nonalcoholic?
- Numerical: How will you prepare a 0.75% #Na_2CO_3# solution?
- What mass of solution containing 5.00% potassium iodide, #KI#, by mass contains 258 mg #KI#?
- An aqueous solution is 34.0 % by mass ethanol, #CH_3CH_2OH#, and has a density of 0.947 g/mL. What is the mole fraction of ethanol in the solution?