how to tell whether the product is aqueous or not in chemical equations (1 Viewer)

[eternallyboreduser]

how do we know?

 

[Luukas.2]

If there is water present, and the product is soluble, it will be aqueous.

 

[eternallyboreduser]

If there is water present, and the product is soluble, it will be aqueous.

But how would you know if the product formed is soluble w/o a solubility table?

 

[Luukas.2]

But how would you know if the product formed is soluble w/o a solubility table?

Sorry, but you need to know basic solubility rules

 

[goodcat911]

But how would you know if the product formed is soluble w/o a solubility table?

for year 11, memorise and use NAGSAG/PMS/Castrobear or SNAAP and such mnemonics (mod 3) to determine whether an ionic compound is soluble or not.

 

[eternallyboreduser]

Sorry, but you need to know basic solubility rules

Oh cos peak didnt teach the solubility rules last lesson (we just started mod2 which started with diff types of chem eqns) so i thought there was another way to tell

 

[snow726]

are all acid reactants aqueous ? or liquids?

 

[wollongong warrior]

are all acid reactants aqueous ? or liquids?

No
Acids can be in all forms, e.g. CO2

 

[snow726]

No
There are exceptions to everything, e.g. CO2

so im assuming if something is placed into the acid on the reactants side e.g. a metal, then the acid would be aqueous ?
how would we know?

 

[wollongong warrior]

so im assuming if something is placed into the acid on the reactants side e.g. a metal, then the acid would be aqueous ?
how would we know?

If that is the case then yea, it would be aqueous
It should say in the subscript unless the person who wrote the eq is hella annoying

 

[Luukas.2]

so im assuming if something is placed into the acid on the reactants side e.g. a metal, then the acid would be aqueous ?
how would we know?

I would refer to HCl (g) as hydrogen chloride or hydrogen chloride gas, whereas I would refer to HCl (aq), the acidic solution made by dissolving hydrogen chloride gas into water, as hydrochloric acid.

Similarly, HCN (g) = hydrogen cyanide, HCN (aq) = hydrocyanic acid.

For acidic substances that exist as solids at RT (in the absence of water), I would hope the question-writer would be careful. However, if a question says that 1.00 g of magnesium is placed into benzoic acid (say), I would take that as implying that the benzoic acid was present in an aqueous solution and not present as a crystalline solid or powder.

 

[snow726]

thank you everyone