How do we measure liquid mass?

Answer 1

Are you asking how one can measure the mass of a liquid?

If we know the density of the liquid, we can obtain a measured volume in addition to directly measuring the mass, which can be done by adding the liquid to a tared container that is balanced.

#rho, "density"="Mass"/"Volume"#, and thus #"mass"="volume"xxrho#.

It only requires taking the right volume containing the necessary stoichiometric equivalent if we deliver a solution with a known concentration.

#"Concentration"="Moles"/"Volume"#,

thus #"moles"="concentration"xx"volume"#.

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Answer 2

Jose Ayala

A balance or scale can be used to measure the mass of liquids by placing the liquid in a container and then placing the container on the scale to measure the weight of the liquid, which can then be converted to mass by multiplying the mass by the liquid's density and volume. Alternatively, volumetric flasks or pipettes, or other specialized instruments, can be used to measure specific volumes of liquid and then multiply the mass by the liquid's density.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.