Question

How many grams of iron (3) carbonate contains 17g of carbonate ions?

Answer 1

I could answer this and help you, but your name is offensive to OS and its users.

Answer 2

i don't understand how the name is offensive?

Answer 3

ok so iron 3 carbonate is Fe2(CO3)3

Answer 4

right?

Answer 5

give me one second

Answer 6

alright

Answer 7

My Public Apology to OSU!

Answer 8

do you mind helping @Preetha

Answer 9

yes i do think you need molar mass i'm researching a bit on this just so you get a good answer

Answer 10

thank you

Answer 11

I think you are trying to calculate how many g of Fe2(CO3)3 would be needed to get 17 g of CO3. If so then here it is:
For every one mole of the Iron carbonate, you have 3 moles of CO3.
So for 17 g of CO3 you need:
17 g CO3 x 1 mole of CO3/molar mass of CO3 x 3 moles CO3/1 mole Fe2(CO3)3 x molar mass of Fe2(CO3)3 /1 mole of Fe2(CO3)3.
Does that make sense?

Answer 12

ok so the molar mass would be...55.8(2) + 12(3) + 16(9)=291.6

Answer 13

that sounds correct @Preetha :)

Answer 14

17 x 6.02x10^23 =1.02x10^25

Answer 15

then...1.02x10^25/ 180=5.7x10^22, is this right so far?

Answer 16

I dont know why you are multiplying by avogadro's number OSU.
In this step, 17 g CO3 x 1 mole of CO3/molar mass of CO3 you have to convert the g to moles by dividing by the molar mass of CO3

Answer 17

so u dont use 6.02x10^23

Answer 18

?

Answer 19

No. How do you convert 17g to moles of CO3?

Answer 20

Molar mass of CO3 is 60.00907 ± 0.00004 g/mol
oops

Answer 21

sorry my things wrong

Answer 22

17/60=.28

Answer 23

yes use my second eqution
mol X g/mol = grams

grams / g/mol = moles.

Answer 24

do i multiply .28 by 3

Answer 25

grams/ g/mol= moles to convert

Answer 26

wait one sec

Answer 27

preetha am i wrong?

Answer 28

I'm sorry my helps not that good on this question I slightly forget learning this but i think you do multiply by three

Answer 29

ok so .28 x 3 = .84/291.6....

Answer 30

is this right?

Answer 31

so the answer is .003?

Answer 32

yes I would asume so! I'd check with some peers too are you in a home school?

Answer 33

nope

Answer 34

then please check with someone I really hope that you get this correct I'm sorry I couldn't help more

Answer 35

its fine thank you

Answer 36

do you have anything else? I can try to help you

Answer 37

nope, thank you

Answer 38

:) sorry bye bye