What volume of a 2.5 m stock solution of h3po4 is needed to prepare 3.8 l of a 1.5 m h3po4 solution? 1.0 l 2.3 l 5.7 l 6.3 l

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

What is the percentage of hydrogen in nitrogen trihydride