Express the strength of a solution both as a ratio and as a percentage if 2 L of the solution contains 400 mg of solute.
Express the strength of a solution both as a ratio and as a percentage if 2...
21. Express each of the following concentrations as a ratio strength: (a) 2 mg of active ingredient in 2 mL of solution (b) 0.275 mg of active ingredient in 5 mL of solution (c) 2 g of active ingredient in 250 mL of solution (d) 1 mg of active ingredient in 0.5 mL of solution
A solution contains 20 ppm Ca+2. Express the Ca+2 concentration in the following terms: 21. A solution contains 20 ppm Cat2. Express the Ca+2 concentration in the following terms: a. g Cat2 in 1,000,000 mL water (mL = 0.001 L) b. g Cat2 in 100 mL water c. % Cat2 in the 100 mL water d. mg Ca 2/kg water (mg = 0.001 g = 0.000001 kg) e. molarity (M or moles Cat2/L).
What is the strength (expressed as a ratio in lowest terms) of a 300 milliliter solution that contains 150 grams of sodium chloride?
please help solve # 3&4 written out please ! PERCENT (%) AND RATIO SOLUTION LABELS Drugs labeled as percentage solutions often express the dosage strength in metric mea sures in addition to percentage strength. The lidocaine label in Figure 9-6, a 2% solu- tion, is an example. But directly underneath this is a "20 mg/ml" designation. Lidocaine HCl is most often ordered in mg, but it is also used as a local anesthetic, and when it is, a physician may...
What is the strength (expressed as a ratio) of a 20 milliliter solution that contains 600 milligrams of sodium chloride? Show and explain your steps in finding the answer. Write a sentence putting your answer into the context of the exercise.
Both in percentage and mole ratio 2. Calculate the mass of carbon in grams in 5.00 grams of aspirin (C9H304) based on two methods discussed in class (mole ratio and mass percentage). (Hint: Chapter 8 worksheet Q#3) (6pts)
What is the strength (expressed as a ratio) of a 30 millier solution that contains 300 milligrams of sodium chloride? O A. 3:30 B. 1:100 O C. 300:30 O D. 10.1 Click to select your answer and then click Check Answer All parts showing clear Ail arch 米
8. You prepare a 500 ml solution that contains 436 NOH The solution has a density o has a measured density of 1.100 g/ml The density of 100 ml. and the density o NaOH is 2.13 g/cm. Complete the following table: Mass of Solute Moles of Solute Volume of Solute Mass of Solvent Moles of Solvent m (moles solute/kg solvent) Total Moles of Solution mole fraction NaOH Mass of Solution mole fraction H20 Volume of Solution ppm (mg solute/L solution)
In clinical applications, the unit parts per million (ppm) is used to express very small concentrations of solute, where ppm is equivalent to 1 mg of solute per 1 L of solution. Calculate the concentration in parts per million for cach of the solutions. There is 29 ug of calcium in a total volume of 61 mL. concentration of calcium: ppm There is 0.57 mg of caffeine in a total volume of 109 ml. concentration of caffeine: ppm There is...
A solution contains 400mg of a drug in 1 pint. using 473 ml = 1 pint what is the % (w/v) of the solution? What is the ratio strength of the solution? What is the mg/ml concentration?