FMohsin15
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The experiment was repeated and 0.73 g of magnesium was added to
150 cm3 of 0.50 mol dm−3 hydrochloric acid.
i) Calculate the number of moles of hydrochloric acid added.
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FMohsin15
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no that's why asking

(Original post by Ensoetre)
Have you not got the answer?
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username4793362
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First of all, look at the stoichiometric ratio
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username4793362
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and then look at the units, as you can see it’s in cm3 right? So what can you infer from this?
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username4793362
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If you’ve read the book/examples then this calculation isn’t as hard as you think
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FMohsin15
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#6
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convert into dm3 divide by 1000?

(Original post by Tracheostenosis)
and then look at the units, as you can see it’s in cm3 right? So what can you infer from this?
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(Original post by FMohsin15)
convert into dm3 divide by 1000?
Correct
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FMohsin15
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now what do i do ?

(Original post by Tracheostenosis)
Correct
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username4793362
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So for the moles of HCL, there’s an equation that you need to have in your back pocket
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Which is why I said that you probably haven’t looked at the examples in the book
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FMohsin15
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#11
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Thanks, I got its 0.15x0.50=0.075
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(Original post by FMohsin15)
Thanks, I got its 0.15x0.50=0.075
Wait, that might be wrong
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FMohsin15
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Do like helping me more or tried?

(Original post by Tracheostenosis)
Which is why I said that you probably haven’t looked at the examples in the book
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Send me the full equation including stoichiometric ratios
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FMohsin15
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(Original post by Tracheostenosis)
Wait, that might be wrong
What no!!!
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username4793362
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You always have to be careful for the stoichiometric ratios, if you really want to get in that A category, I’m assuming you’re in Year 12?
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FMohsin15
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(Original post by Tracheostenosis)
Send me the full equation including stoichiometric ratios
here
Attached files
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username4793362
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The answer is correct by the looks of it, because you haven’t really supplied me with context so I can’t say, but jut keep practicing
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FMohsin15
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(Original post by Tracheostenosis)
You always have to be careful for the stoichiometric ratios, if you really want to get in that A category, I’m assuming you’re in Year 12?
yeah lol
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Yeah it’s correct
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