A gas cylinder contains a mixture of compressed gases. The label reads:
21% oxygen, 78% nitrogen and 1% argon. When the cylinder is full the pressure is 6000 kPa.
What is the partial pressure of the oxygen?

Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest

Which sample at stp has the same number of atoms as 18 liters of ne at stp

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons