Question

using the chemical stoichiometry, determine the number of moles of carbonic acid that can be produced from 4 mol of NaHCO3 and 8 mol HCI

Answer 1

you need to first write an equation and balance it.

The use the stoichiometric coefficients to find moles produced.

e.g. for a general reaction:

\(\color{red}{a}A + \color{blue}{b}B\) \(\rightleftharpoons\) \( \color{green}{c}C\)

where upper case are the species (A,B,C), and lower case (a,b,c) are the coefficients ,

\(\dfrac{n_A}{\color{red}{a}}=\dfrac{n_B}{\color{blue}{b}}=\dfrac{n_C}{\color{green}{c}}\)


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For example: if you have moles of B= 2, how many moles of C did you produce?

solve algebraically: \(\dfrac{2}{\color{blue}{b}}=\dfrac{n_C}{\color{green}{c}}\rightarrow n_c=\dfrac{2*\color{green}{c}}{\color{blue}{b}}\)
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Answer 2

write the balanced equation, use the coefficients and a ratio (as posted above) to solve for moles of whatever species you're looking for

Answer 3

idk, you need to write the balanced equation first

Answer 4

you'll essentially have: \(\dfrac{n_{limiting \;reagent}}{coefficient}=\dfrac{n_{carbonic \;acid}}{coefficient}\)

Answer 5

did you write the equation yet?

Answer 6

it doesn't have to be, you just need to pay attention in class or read your book.

Answer 7

i do but i bi-lingual nd english is hard for me so writing down takes me hrs

Answer 8

@mebs using the chemical stoichiometry, determine the number of moles of carbonic acid that can be produced from 4 mol of NaHCO3 and 8 mol HCI
can u help me plz

Answer 9

lol

Answer 10

so i know i would really appreciate your help?@aaronq

Answer 11

write down the balanced equation and i'll help you further

Answer 12

its okay:( i dont know how nd u dont gunna help me @aaronq thank u

Answer 13

@Lena772 do u get the problems

Answer 14

they gave you the formulas, all you need to do it put them in order and balance the number of atoms

Answer 15

Which one do you need help with, I'm confused.

Answer 16

it's the same question throughout:
"using the chemical stoichiometry, determine the number of moles of carbonic acid that can be produced from 4 mol of NaHCO3 and 8 mol HCI"

Answer 17

@Lena772 using the chemical stoichiometry, determine the number of moles of carbonic acid that can be produced from 4 mol of NaHCO3 and 8 mol HCI
this one

Answer 18

i need to find the the _____ mol H2CO3 and how much excess reactant remains after the reaction ______ mol?

Answer 19

What topic in Chemistry is this?

Answer 20

Molar Ratios?

Answer 21

So our balanced equation is \[NaHCO _{3} + HCl \rightarrow NaCl + H _{2}CO\] . I'm assuming this is limiting reagent question to see the minimum amount of product in this case carbonic acid we can produce

Answer 22

To start we have 4 mol of NaHCO3 and 8 mol HCl . We want to know the minimum amount which could be produced and to get that we use the mole ratio that produces the least amount of the product. So in this case everything is in a 1:1 ratio. Se we learn 4 mol of NaHCO3 will give 4 mol of H2CO3 ; and 8 mol HCl will produce 8 mol H2CO3 . We want to use the least amount of mole we can gain. So 4 mol H2CO3 produced making NaHCO3 our limiting reagent

Answer 23

@emanuelfarias

Answer 24

@GavinxFiasco what would be the answeer?

Answer 25

because i need in mol H2CO3?

Answer 26

Oh i'm seeing you need to know how much excess reactant as well so we need to find how many moles of HCl which should be the same. If it's all a 1:1 mole ratio

Answer 27

4.0 mol of everything it seems by the mol to mol ratio

Answer 28

if we went to how many grams this would all be different

Answer 29

yeah i need to know that excess reactant

Answer 30

4 mol of excess reactant as well

Answer 31

well it dosent want it grams does it? it says to determine the number of moles of carbonic acid produced from 4 mol of NaHCO3 and 8 Mol of HCI so i need to find it in ____mol H2CO3?

Answer 32

4 mols of Carbonic acid

Answer 33

yes

Answer 34

and 4 mols of excess reactant

Answer 35

wait what so 4 mol H2CO3 is that answer
???

Answer 36

it dosent look right

Answer 37

@Lena772 chapter 9 yeah mole rations can u help me

Answer 38

yes 4 mols is the answer

Answer 39

okay your right? now i need to find how much excess reactant remains after the reaction? _____ mol?

Answer 40

@GavinxFiasco

Answer 41

for the same problem?

Answer 42

@GavinxFiasco

Answer 43

thats the last think :)@GavinxFiasco

Answer 44

I believe it's still 4 moles because you use your limiting reagent to find how many moles of your excess you will use and in this case it' s 4 mols .

Answer 45

Since originally you had 8 mol then subtract the 4 you use leaves 4 mols

Answer 46

@GavinxFiasco CORRECt:)
yay

Answer 47

You're welcome ^.^

Answer 48

@GavinxFiasco ur good
given the following chemical, determine how many grams of N2 are produce by 9.24g of H2O2 and 6.56g of N2H4?

Answer 49

@GavinxFiasco

Answer 50

Alright another limiting reagent question. I think you should open it as a new question because this thread is sort of long

Answer 51

@emanuelfarias

Answer 52

oh k

Answer 53

idk how to that u open? yeah @GavinxFiasco

Answer 54

just close this question an make a new one @emanuelfarias