Usinfg the formula: SI V1=S2 V2
25X 250=0.9X V2
=6944 ml will be required. to add in the given stock solution to make it isotonic.
2. How many milliliters of water must be added to 250mL of a 25% (w/v) stock...
How many milliliters of a 10% w/v antiseptic lotion must be added to 450 mL of a 30% w/v antiseptic lotion in order to prepare a 25% antiseptic lotion? How is this solved? Answer should be 150
28 How many milliliters of a 4.0% (w/v) solution must be used to prepare 250 mL of a 0.080% (w/v) solution? A 5.0 mL B 2.5 mL 0.50 mL D 25 mL
Isopropyl alcohol is mixed with water to produce a 38.0% (v/v) alcohol solution. How many milliliters of each component are present in 875 mL of this solution? Assume that volumes are additive. alcohol: mL water: ml The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common. How many grams of sucrose are needed to make 695 mL of a 38.0% (w/v)...
How many milliliters each of purified water and an isotonic sodium chloride solution should be used to prepare 30 mL of a 1% w/v isotonic solution of fentanyl citrate (E = 0.11)? please may have explanation step by step
8-67 For each of the following solutions, how many milliliters of water should be added to yield a solution that has a concentration of 0.100 M? 8-69 Determine the final concentration of each of the following solutions after 20.0 mL of water has been added. a. 30.0 mL of 5.0 M NaCl solution b. 30.0 mL of 5.0 M AgNO, solutionc. 30.0 mL of 7.5 M NaCl solution d. 60.0 mL of 2.0 M NaCl solution 8-115 At a given temperature, which of...
How many milliliters each of purified water and an isotonic sodium chloride solution should be used to prepare 30 mL of a 1% w/v isotonic solution of fentanyl citrate (E= 0.11)? Separate each volume by a comma. I need help with this problem. Can you please show me step by step on how to solve this. Thank you.
please do all parts and hurry
Part 1.
part 2.
part 3.
7. A pharmacist dissolves 18 g of potassium iodide (KI) in 300 ml of water. How many mEq/L and mosm/L are in the solution? (KI m.w. 166) a. How many mol/L of Kl are in the solution? b. What is Eq/mol conversion factor for KI? How many Eq/L of Kl are in the solution? What is the Osm/mol conversion factor for KI? How many Osm/L of KI are...
How many milliliters of 1.92 M NaOH must be added to 1.00 × 102 mL of 0.16 M NaH2PO4 to make a buffer solution with a pH of 6.50? _____________ml
How many milliliters of 1.18 M NaOH must be added to 125 mL of 0.10 M NaH2PO4 to make a buffer solution with a pH of 6.90?
a stock solution of 1.50 M NaCl is available. How many milliliters are needed to make 3.25 L of 0.550 M NaCl solution? 1. 1.19mL 2. 0.254ml 3. 8,860mL 4. 1,190mL 5. 8.86mL