gabrielar80
31.01.2020 •
Chemistry
What will happen if you add more solute to a saturated solution?
it will dissolve.
it will remain undissolved in the container.
it will become solvent.
it will increase the concentration.
which of these is true about pure substances?
they can only contain one type of atom.
they can only contain one type of molecule.
they may contain one type of atom or one type of molecule.
they can contain different types of atoms and molecules.
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Ответ:
FeBr3 + 3AgNO3 -> 3AgBr + Fe(NO3)3
Find the number of moles of FeBr3 we started with to find the number of moles of AfBr we end up with (we need to build a ratio)
3.96g FeBr3 / 295.55 g/mol * 3 mol AgBr / 1 mol FeBr3 * 187.77 g /mol = 7.55 g AgBr