July 16, 2019, 05:15:40 AM
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Topic: hOW TO SOLVE THIS  (Read 438 times)

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GYHRTYNUUT

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hOW TO SOLVE THIS
« on: June 29, 2019, 05:44:01 AM »
Hello sir
How to solve this
When 6.3gm of sodium bicarbonate are added to 30.0gm of acetic acid solution , the residual solution is found to weight 33.0gm The mass of carbon dioxide released in the reaction is

1. 3gm 2. 0.91gm 3. 1.91gm 4. 3.3gm 

Offline AWK

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Re: hOW TO SOLVE THIS
« Reply #1 on: June 29, 2019, 08:00:18 AM »
Very simple addition and subtraction.
AWK

Offline Babcock_Hall

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Re: hOW TO SOLVE THIS
« Reply #2 on: June 29, 2019, 09:02:07 AM »
Please show us your work, and we may be able to help you.

GYHRTYNUUT

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Re: hOW TO SOLVE THIS
« Reply #3 on: June 29, 2019, 10:23:26 AM »
Hello sir
How to solve When 6.3gm of sodium bicarbonate are added to 30.0gm of acetic acid solution , the residual solution is found to weight 33.0gm The mass of carbon dioxide released in the reaction is

1. 3gm 2. 0.91gm 3. 1.91gm 4. 3.3gm 

6.3gm + 30.0gm =36.3gm

Offline AWK

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Re: hOW TO SOLVE THIS
« Reply #4 on: June 29, 2019, 10:27:59 AM »
This is just half of the work.
AWK

GYHRTYNUUT

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Re: hOW TO SOLVE THIS
« Reply #5 on: June 29, 2019, 10:32:43 AM »
Hello sir
How to solve this how to find mass of carbon dioxide

Offline AWK

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Re: hOW TO SOLVE THIS
« Reply #6 on: June 29, 2019, 01:35:28 PM »
You mixed two solutions and released carbon dioxide. The final mass of the reaction mixture (after reaction) was given. How much carbon dioxide released?
AWK

GYHRTYNUUT

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Re: hOW TO SOLVE THIS
« Reply #7 on: July 01, 2019, 05:47:23 AM »
When 6.3gm of sodium bicarbonate are added to 30.0gm of acetic acid solution , the residual solution is found to weight 33.0gm The mass of carbon dioxide released in the reaction is

6.3gm + 30.0gm =33.0gm+3.3gm of carbon dioxide

Offline DKyang

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Re: hOW TO SOLVE THIS
« Reply #8 on: July 09, 2019, 10:23:06 AM »
First, AcOH is excess, so CO2=6.3g/84*44=3.3gm.
in other way ,NaHCO3:6.3g+AcOH:30g=mix:33g+CO2:3.3g by Law of conservation of mass

Offline AWK

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Re: hOW TO SOLVE THIS
« Reply #9 on: July 09, 2019, 12:35:51 PM »
First, AcOH is excess, so CO2=6.3g/84*44=3.3gm.
in other way ,NaHCO3:6.3g+AcOH:30g=mix:33g+CO2:3.3g by Law of conservation of mass
From the content of the problem, we have no basis to say that acetic acid is in excess (30.0gm of acetic acid solution - we do not know the concentration of the solution). From the numerical data, we can check that acetic acid was at least in the stoichiometric amount and 3.3 g is the correct answer.
AWK

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