rogor movemzadoT pedagogTa sasertifikacio gamocdisaTvis

41. mocemulia amocana:
"2.3 g natriumi gaxsnes 97.8 ml wyalSi. gamoTvaleT gamoyofili wyalbadis
moculoba (n. p.) da natriumis hidroqsidis masuri wili miRebul xsnarSi".
erT-erTma moswavlem es amocana Semdegnairad amoxsna:
2Na + 2H2O → 2NaOH + H2↑
(Na) = 2.3 : 23 = 0.1 moli
(NaOH) = (Na) = 0.1 moli
(H) = 2 ∙ (Na) = 0.2 moli
V(H2) = 22.4 ∙ ( H2) = 22.4 ∙ 0.2 = 4.48 l
Mr(NaOH) = 23 + 1 + 16 = 40
M(NaOH) = 40 g/moli
(NaOH) = 0.1 ∙ 40 = 4 g
(xsn.) = (Na) + (H2O)
(xsn.) = 2.3 + 97.8 = 100.1 g
(NaOH) = (NaOH) : (xsn.) = 4 : 100.1 ≈ 0.04
pasuxi: V(H ) = 4.48 l; (NaOH) 0.04.
SeafaseT moswavlis mier Sesrulebuli naSromi qvemoT mocemuli instruqciisa
da Sefasebis sqemis mixedviT.
instruqcia:
amocana unda SeafasoT maqsimum 10 quliT.
Sefaseba unda moxdes mxolod sqemaSi mocemuli xuTi kriteriumis
mixedviT.
TiToeuli kriteriumi 2-quliania da fasdeba mTeli qulebiT.
Sefasebis erT-erTi mTavari principia: erTi konkretuli Secdoma
isjeba mxolod erTxel. (Tu moswavle uSvebs Secdomas da akldeba
qula erT-erTi kriteriumis mixedviT, maSin SemdgomSi mas aRar unda
daakldes qula iseTi SecdomisTvis, romelic ukve dafiqsirebuli
SecdomiTaa gamowveuli).
gaiTvaliswineT, rom komentaris gakeTeba aucilebelia yvela kriteriumisaTvis!
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