stężenie procentowe roztworu wodorotlenku, który powstał w tej reakcji.
mNa=23umNaOH=40uNa + H₂O---->NaOH + ½H₂23g Na------40g NaOH46g Na-------xg NaOHx = 80g NaOHNa + H₂O---->NaOH + ½H₂23g Na------1g H₂46g Na------xg H₂x = 2g H₂80g NaOH------200g roztworu (46g Na+156g H₂O-2g H₂)xg NaOH--------100g roztworux = 40g NaOHx = 40%
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mNa=23u
mNaOH=40u
Na + H₂O---->NaOH + ½H₂
23g Na------40g NaOH
46g Na-------xg NaOH
x = 80g NaOH
Na + H₂O---->NaOH + ½H₂
23g Na------1g H₂
46g Na------xg H₂
x = 2g H₂
80g NaOH------200g roztworu (46g Na+156g H₂O-2g H₂)
xg NaOH--------100g roztworu
x = 40g NaOH
x = 40%