a 25.37g sample of cleaner that contains ammonia is dissolved in water and the solution made up to 250cm3. a 25cm3 portion of this solution requires 37.3cm3 of 0.36 moldm-3 H2SO4 for neutralisation. what is the percentage of ammonia in the cleaner.
2NH3 + H2SO4 → (NH4)2SO4
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tomlfc
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- 18-10-2015 12:56
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- 18-10-2015 13:13
(Original post by tomlfc)
a 25.37g sample of cleaner that contains ammonia is dissolved in water and the solution made up to 250cm3. a 25cm3 portion of this solution requires 37.3cm3 of 0.36 moldm-3 H2SO4 for neutralisation. what is the percentage of ammonia in the cleaner.
2NH3 + H2SO4 → (NH4)2SO4 -
tomlfc
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- 18-10-2015 13:38
(Original post by charco)
And what have you tried so far? -
username986184
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- 18-10-2015 13:51
Complete this first
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tomlfc
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- 18-10-2015 17:36
nope still don't know
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username986184
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- 18-10-2015 17:38
(Original post by tomlfc)
nope still don't know -
tomlfc
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- 18-10-2015 17:39
(Original post by TeachChemistry)
Are you studying AS or GCSE? -
username986184
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- 18-10-2015 17:40
(Original post by tomlfc)
AS 😅 -
tomlfc
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- 18-10-2015 17:43
(Original post by TeachChemistry)
Surely you came across this at GCSE and are now just reviewing it at AS? -
username986184
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- 18-10-2015 19:36
(Original post by tomlfc)
I've never done it before, its the wording of it like once i know the steps i can do it its knowing where to start and where to go from there thats my problem
You know conc = mol/vol (in dm3) -
tomlfc
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- 18-10-2015 20:09
(Original post by TeachChemistry)
It's a titration problem. Did you complete the table as I suggested?
You know conc = mol/vol (in dm3) -
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- 18-10-2015 21:06
(Original post by tomlfc)
i think I've done it I'm just on the last bit of getting the percentage of ammonia in it but how would i do that?
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