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Topic: Is this equation right?  (Read 1803 times)

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Offline dja01

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Is this equation right?
« on: September 29, 2019, 04:53:56 PM »
Synthesis of strontium iodate monohydrate using potassium iodate and strontium

Sr(NO3)2 + 2KIO3 +H2O ::equil:: Sr(IO3)2 + 2KNO3 + H2O

This is the equation I used before, but it doesn't account for the monohydrate.
Sr(NO3)2 + 2KIO3  ::equil:: Sr(IO3)2 + 2KNO3

How does adding the word monohydrate change the equation?
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Offline AWK

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Re: Is this equation right?
« Reply #1 on: September 29, 2019, 05:01:39 PM »
Sr(IO3)2·H2O
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Offline dja01

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Re: Is this equation right?
« Reply #2 on: September 29, 2019, 10:49:08 PM »
Is this on both sides of the equation? Or just the left?
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Offline AWK

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Re: Is this equation right?
« Reply #3 on: September 30, 2019, 03:03:07 AM »
Is this compound on the left side of the equation?
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Offline Borek

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Re: Is this equation right?
« Reply #4 on: September 30, 2019, 03:16:02 AM »
Let's start from the beginning - what is a monohydrate? How does the strontium iodate monohydrate differ from the strontium iodate?
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Offline dja01

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Re: Is this equation right?
« Reply #5 on: September 30, 2019, 11:10:02 AM »
My bad. Since a monohydrate is being synthesized, the . H2O would be on the right side, not on the left. Right?
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Offline AWK

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Re: Is this equation right?
« Reply #6 on: September 30, 2019, 02:26:53 PM »
Strontium iodate is only on right side.
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Offline dja01

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Re: Is this equation right?
« Reply #7 on: September 30, 2019, 10:34:20 PM »
So, does this equation make sense?

Sr(NO3)2 + 2KIO3  ::equil:: Sr(IO3)2 ° H2O + 2KNO3

Does the monohydrate affect how I need to balance the equation? Or is it fine as it stands?
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Offline AWK

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Re: Is this equation right?
« Reply #8 on: September 30, 2019, 11:38:46 PM »
Your first equation was correct on the left side, except for the hydrate on the right, which I tried to suggest in my first post. That's all.
Balancing reaction equations is a type of chemical algebra that is extremely easy if you understand chemical symbolism.

Really easy!
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Offline Borek

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Re: Is this equation right?
« Reply #9 on: October 01, 2019, 03:27:39 AM »
You are going in circles, I will repeat my original question that you ignored: what is a monohydrate? How does the strontium iodate monohydrate differ from the strontium iodate?
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Offline dja01

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Re: Is this equation right?
« Reply #10 on: October 01, 2019, 01:16:20 PM »
From my understanding, a monohydrate is a compound that has been hydrated (contains water). Mono indicates one H2O, while di or trihydrate would increase that number. Strontium Iodate by itself does not contain water, but Strontium Iodate monohydrate does.
Sr(NO3)2 + 2KIO3 + H2O ::equil:: Sr(IO3)2 ° H2O + 2KNO3
Sorry for ignoring your question, but is this correct? I have drawn my own conclusions since I have never had the meaning of a monohydrate actually defined. I am running into issues making a limiting reagent table with this reaction since my equation was wrong.

*sorry for the equation formatting
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Offline AWK

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Re: Is this equation right?
« Reply #11 on: October 01, 2019, 02:05:08 PM »
Sr(NO3)2 + 2KIO3 + H2O = Sr(IO3)2·H2O + 2KNO3
Every balanced chemical equation is also an algebraic equation and can be verified - sums of all types of atoms on both of equation sides should be equal.
During synthesis, you will obtain strontium iodate monohydrate as a poorly soluble solid hence the water molecule should be involved in this compound.
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Offline Borek

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Re: Is this equation right?
« Reply #12 on: October 01, 2019, 04:06:54 PM »
Quote from: dja01 on October 01, 2019, 01:16:20 PM
From my understanding, a monohydrate is a compound that has been hydrated (contains water). Mono indicates one H2O, while di or trihydrate would increase that number. Strontium Iodate by itself does not contain water, but Strontium Iodate monohydrate does.

Yes - so, comparing with your first reaction equation, you need an additional water molecule. If crystallizing from water solution water is abundant, so you can freely add it on the left side of the equation as one of the reactants to balance the equation (which you did).
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