An object has a density of 4.5kg/mL and a mass of 3.56kg. What is the volume of the object in ml?

1 answer:

7 0

Density has a formula of::

Density = Mass/Volume

To work out volume, we must isolate it’s variable in the formula, where doing so gives us::

Volume = Mass/Density

If we now substitute in our values, the volume of the object becomes 0.791 kg (recurring 1)!

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What does the 32.06 represent?

lana [24]

The 32.06 represent The atomic mass, the average number of protons & neutrons

<h3>Further explanation </h3>

The Atomic Number (Z) indicates the number of protons in an atom of an element. If the atom is neutral then the number of protons will be equal to the number of electrons. So the atomic number can also indicate the number of electrons.

So atomic number = number of protons = number of electrons

Mass Number (A) is the sum of protons and neutrons

Mass Number (A) = Number of protons + Number of Neutrons

So that the relationship between atomic numbers and mass numbers can be formulated as follows:

Atomic Number (Z) = Mass Number (A) - Number of Neutrons

In the following element notation,

$\large {{{Z} \atop {A}} \right X}$