Can someone help me with my chem homework☹️

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion