Question

Convert 91 mL to µL and write the answer in scientific notation.

Answer 1

ANSWER

$\text{ 91000}\mu L$

EXPLANATION

Given that;

The volume is 91mL

Let x represent the volume in microliter

Recall, that 1mL is equivalent to 1000 microliters

$\begin{gathered} \text{ 1mL }\rightarrow\text{ 1000}\mu L \\ \text{ 91mL }\rightarrow\text{ x}\mu L \\ \text{ cross multiply} \\ \text{ 1mL }\times\text{ x}\mu L\text{ = 1000}\mu L\text{ }\times\text{ 91mL} \\ \text{ isolate x} \\ \text{ x}\mu L\text{ = }\frac{1000\mu L\times91\cancel{mL}}{1\cancel{mL}} \\ \\ \text{ x }\mu L\text{ = }1000\text{ }\times\text{ 91} \\ \text{ x = 91000}\mu L \end{gathered}$

Hence, the answer is 91000 microliters