Question

Ketamine, sometimes used as an adjuvant Two general anesthesia, it’s available as a 10.0% (w/v) solution. Calculate the mass of ketamine in 1.50 mL of this solution. Be sure your answer has a unit symbol and is rounded to the correct number of significant digits.

Answer 1

Answer:

$0.15g\text{ of ketaime}$

Explanation:

Here, we want to calculate the mass of ketamine in 1.50 mL of the solution

A 10% w/v means there are 10 g iof ketamine n 100 ml of solution

Thus, if we have 10 g in 100 ml, there will be x g in 1.5 ml

10g in 100 ml

xg in 1.5 ml

By cross multiplication, we have:

$\begin{gathered} 10\text{ }\times\text{ 1.5 = x}\times\text{ 100} \\ x\text{ = }\frac{15}{100} \\ x\text{ = 0.15g} \end{gathered}$