The mass of a toy spoon is 7.5 grams and it's volume is 3.2 ml. What is the density of the toy spoon?

The density of a substance is the ratio of its mass to its volume. In other words,

density = mass of a substance / volume of the substance = M / V

where M is the mass of the substance and V is its volume.

In this case, the mass of the toy spoon is 7.5 g and hence M = 7.5 g.

The volume of the toy spoon is 3.2 ml and hence V = 3.2 ml.

Thus, the density of the spoon can be calculated as:

density = M / V = 7.5 g / 3.2 ml = 2.344 g/ml or 2.3 g/ml (rounded off)

Thus, the density of the toy spoon is about 2.3 g/ml. We can also write the density as 2.3 kg/l or 2344 kg/m^3. 

Note that the toy spoon is 2.344 times heavier than the water (which has a density of about 1000 kg/m^3).

Hope this helps.