Question

Chlorhexidine gluconate is available in different products in concentrations of 4% w/v and 0.12% w/v. How many milliliters of the more dilute product may be prepared from each fluidounce of the more concentrated product

Answer 1

Answer:

From each fluidounce, 985.78 milliliters of the more dilute product can be produced.

Explanation:

From the given information:

4% w/v = 4g of solute in 100 mL of solution

0.12% w/v = 0.12g of solute in 100 mL of solution

Since 1 fluidounce = 29.5735 ml

∴

100 mL of solution contains 4g of solute

29.95735 ml will have $\dfrac{4}{100} \times 29.5735$

= 1.18294g solute

Thus, 1 fluidounce contains 1.18294g solute

So, for the dilute solution, 0.12 g solute yields 100 mL solution

∴ 1.18294g will have $\dfrac{100}{0.12} \times 1.18294$

= 985.78 ml