142 g of liquid was poured into a beaker. The level in the beaker is set at around 200 cm3. What liquid was poured into the beaker?

m = 142 g = 142 * 0.001 kg = 0.142 kg;

V = 200 cm³ = 200 * 0.000001 m³ = 0.0002 m³;

(Kg and m³ – units of the international system).

ρ -?

To find out what liquid was poured into a beaker, you need to know the density of this liquid. To do this, we will use the formula ρ = m / V, where ρ is the density of the liquid, m is the mass of the liquid, and V is the volume of the liquid.

Then, ρ = 0.142 kg / 0.0002 m³ = 710 kg / m³.

According to the density table, we see that ether and gasoline have the same density.

Answer: Ether or gasoline was poured into a beaker.