I got that it should be about 19.71 but that keeps showing us as wrong. Also in the question it says "Use a molar mass with at least as many sig figs as the data given. I'm not very good with sig figs (they dont make sense) so I'm sure why I'm getting that question wrong.
All feedback is apperciated.
2007-05-20 09:50:28 · 2 answers · asked by bibbitybobbyboo22 2 in Science & Mathematics ➔ Chemistry
6.9/106 x 1000/350
2007-05-20 09:59:38 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
in case you're no longer specific which equation to apply, circulate back to the definitions: concentration = volume/volume (consistently) greater pretty, Molarity (concentration mol/L) = moles/volume in L Moles = mass/(molar mass) (consistently) = 372g/(molar mass of H3PO4) volume = 455 x 10^-3 L you may now replace and do the maths. significant: you do no longer could desire to memorise a lot of formula in case you comprehend the thought.
2016-12-11 15:09:58 · answer #2 · answered by ? 4 · 0⤊ 0⤋