Koliko procenata kiseonika ima rastvor NaOH koji sadrzi 0,1 mol NaOH u 1000 g vode?
M(NaOH)=40 g/mol0.1mol NaOH--> 4g NaOH;H2O: 16:18=x:1000--> x=888,8889gNaOH: 4:x=40:16--> x=1.6gw(O)=890,4889g/1004g=88,694%
"A new scientific truth does not triumph by convincing opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it" Max Planck
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M(NaOH)=40 g/mol0.1mol
M(NaOH)=40 g/mol
0.1mol NaOH--> 4g NaOH;
H2O: 16:18=x:1000--> x=888,8889g
NaOH: 4:x=40:16--> x=1.6g
w(O)=890,4889g/1004g=88,694%
"A new scientific truth does not triumph by convincing opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it" Max Planck