The volume ratio of nitrogen to oxygen in air is about 1:4. It is known that under the standard condition, the density of nitrogen is 1.250 g / L-1, and that of oxygen is 1.429 g / - 1, Calculate the mass ratio of nitrogen and oxygen in air

The volume ratio of nitrogen to oxygen in air is about 1:4. It is known that under the standard condition, the density of nitrogen is 1.250 g / L-1, and that of oxygen is 1.429 g / - 1, Calculate the mass ratio of nitrogen and oxygen in air

Suppose that the volume of air under standard condition is 5, then there are 4 volumes of nitrogen and 1 volume of oxygen, so the mass ratio of nitrogen to oxygen is 4 * 1.250 / (1 * 1.429), which is about 3.5

Under known standard conditions, the density of hydrogen is 00899g / L, the density of oxygen is 1.429/l, and the volume of electrolyzed water is 2.1

1:8