When a 22.9 ml sample of a 0.409 m aqueous nitrous acid solution is titrated with a 0.478 m aqueous barium hydroxide solution, what is the ph after 14.7 ml of barium hydroxide have been added?

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold