mahahnooriftikhar199 mahahnooriftikhar199

17-09-2020
Chemistry

contestada

The density of an alcohol is 0.788 g/mL. What volume in microliters, μL, will correspond to a mass of 20.500 mg?

A.
2.60 x 10-2 μL

B.
26.0 μL

C.
16.2 μL

D.
2.60 x 104 μL

Respuesta :

sebassandin sebassandin

23-09-2020

Answer:

B. 26.0 μL.

Explanation:

Hello,

In this case, taking into account that given the mass and density, the volume is computed to be:

[tex]V=\frac{m}{\rho} =\frac{25.000mg}{0.788g/mL}*\frac{1g}{1000mg}*\frac{1000\mu L}{1mL} \\ \\V=26.0\mu L[/tex]

Thus, answer is B. 26.0 μL.

Best regards.

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