Question

Please help! Will become fan.

Answer 1

@thomaster

Answer 2

convert grams to moles, divide each by it's respective stoichiometric coefficient.

then percent yield = (NaCN/NaAu..) x100%

Answer 3

wait one second, will you walk it through with me please. I would appreciate it.

Answer 4

@aaronq

Answer 5

do it and ill correct you if you're wrong

Answer 6

post each step though

Answer 7

ALRIGHT, first covert 3.00 grams of NaCN to moles = 49? @aaronq

Answer 8

moles = mass/ molar mass

Answer 9

3.00/ 49?

Answer 10

0.06 moles?

Answer 11

if 49 g/mol is the molar mass then yes

Answer 12

yes it is, I added the molecular mass of NA then of C then of N & got 49?

Answer 13

okay good stuff.

Answer 14

do the same for NaAu(CN)2

Answer 15

next step?

Answer 16

I got 346 for the molecular mass of NaAu(CN)
do I times that by 2? then 10 divided by that answer? @aaronq

Answer 17

you're finding the moles of NaAu(CN)2 first

moles=mass/molar mass