Question

A wooden block has the following measured dimensions: height 1.25 cm; width 2.5 cm and length of 15.956 cm. Calculate its volume in ml with the proper number of significant figures.

Answer 1

Answer:

$V=50mL$

Explanation:

Hello,

In this case, by knowing that the volume of an object is computed by considering its dimensions, width, length and height, for the given measurements, we obtain:

$V=W*H*L=1.25cm*2.5cm*15.956cm\\\\V=49.86cm^3$

Moreover, since one cubic centimetre equals one millilitre, the required volume is:

$V=49.86cm^3*\frac{1mL}{1cm^3}\\ \\V=49.86mL$

Finally, since 2.5 cm has the fewest significant figures (2), the proper result is:

$V=50mL$

Regards.