Can someone help me with chem?
According to the following reaction, how many moles of water are necessary to form 0.809 moles phosphoric acid?
diphosphorus pentoxide (s) + water (l) phosphoric acid (aq)
回答 (2)
The balanced equation for the reaction:
P₂O₅(s) + 3H₂O(ℓ) → 2H₃PO₄(aq)
Mole ratio H₂O : H₃PO₄ = 3 : 2
When moles of H₃PO₄ formed = 0.809 mol,
Moles of H₂O needed = (0.809 mol) × (3/2) = 1.21 mol
Sorry, my answer is "Anonymous" as your post is Anonymous. There is no need for an Anonymous question in this category, Most 'Anonymous' posts are trolls, maybe yours is not, but the high likelihood is there. If you post as yourself, I would be glad to help you with any problem you have.
I spend a lot of time on each problem, I just want to make sure it's for a worthwhile cause.
收錄日期: 2021-04-30 17:15:19
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20200515055559AAr5Vtd
檢視 Wayback Machine 備份