Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: JeffLindla123 on June 07, 2021, 02:56:42 PM
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4.52 L of fluoride gas is combined with 25.3 g of Hm metal (Hm being a made up element with a molar mass of 49.11 g/mol). The resulting compound HmF2. What is the volume of dry HmF2 gas is collected over water at 26 degrees Celsius and 104.24 kPa
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There is definitely some typo in your post and some missing information that makes it impossible to solve/help
HmF2 + Hm produces some gas and we are expected to find the amount of the HmF2 produced?
Is it intended to be
Hm + F2 :rarrow: HmF2(g)
?
Even if so, we are not given any information to base the stoichiometry calculation on.
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There is definitely some typo in your post and some missing information that makes it impossible to solve/help
HmF2 + Hm produces some gas and we are expected to find the amount of the HmF2 produced?
Is it intended to be
Hm + F2 :rarrow: HmF2(g)
?
Even if so, we are not given any information to base the stoichiometry calculation on.
I've changed the original question to have all the information. Sorry
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Please don't change your original post once it's been replied to; it makes the reply meaningless. You can make corrections in a subsequent post if necessary.
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So it is a limiting reagent problem, isn't it?
There is a slight problem with fluorine, volume is given but not conditions, so it is not clear how to convert volume to moles. Assume whatever STP you want, just state it clearly in your solution.
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So it is a limiting reagent problem, isn't it?
There is a slight problem with fluorine, volume is given but not conditions, so it is not clear how to convert volume to moles. Assume whatever STP you want, just state it clearly in your solution.
fluorine is held at STP and after getting 4.52 L of HmF2 using stoichiometry. I need to determine how much of it is actual dry gas.
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fluorine is held at STP
Even that is a bit ambiguous, but OK.
and after getting 4.52 L of HmF2 using stoichiometry
That would be at STP (assuming STP to be exactly the same for both gases), but you are actually given temperature and pressure which clearly are not STP. Have you calculated the volume of the gas as it was collected?
I need to determine how much of it is actual dry gas.
Do you understand the difference between dry gas and wet gas?