Phosphoric acid, tsis muaj xim, tsis muaj ntxhiab, yog ib qho tseem ceeb ntawm cov tshuaj lom neeg nrog rau ntau yam kev siv thoob plaws ntau yam lag luam. Nws cov tshuaj formula, H₃PO₄, qhia txog nws cov muaj pes tsawg leeg ntawm peb hydrogen atoms, ib tug phosphorus atom, thiab plaub oxygen atoms. Qhov kev sib xyaw no tsis yog qhov tseem ceeb xwb ...
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