What pressure will be exerted by 0.450 mol of a gas at 25°C if it is contained in a 0.650-L vessel?

What is the mass of sodium in 3 moles of sodium chloride

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

Chromosome 17 is made of over million base pairs.