contestada

Lidocaine, a widely used local anesthetic, it’s available as a 2.0% (w/v) solution for injection. Calculate the volume of the solution that contains 60 mg of lidocaine. Be sure your answer has a unit symbol and is rounded to the correct number of significant digits.

Lidocaine a widely used local anesthetic its available as a 20 wv solution for injection Calculate the volume of the solution that contains 60 mg of lidocaine B class=

Respuesta :

Givens.

• Lidocaine is available as a 2.0% (w/v) solution.

,

• The mass of solute is 60. mg of lidocaine.

To find the volume of this solution, we use the following equation.

[tex](\frac{w}{v})=\frac{Mass\text{ of solute}}{Volume\text{ of solution}}[/tex]

Use the given magnitudes and solve for volume.

[tex]\begin{gathered} 0.02=\frac{60mg}{V} \\ V=\frac{60mg}{0.02} \end{gathered}[/tex]

But, we need to use grams.

[tex]V=\frac{0.060g}{0.02}=3[/tex]

Therefore, the volume of this solution is 3.0 mL.