Kimyo masala yechish. 1- qism

KIMYO
MASALA YECHISH.
1- QISM.
{Bu qo’llanma dastlabki tushunchalarni –(nazariy va masala) qismini o’z ichiga olgan}


Tuzuvchilar: Matyaqubov Jo’rabek [phone] – 08 – 55.
Jumaniyozov Jo’shqin [phone] - 98 –85.
I. Nisbiy atom massa.
Nisbiy atom massa quyidagicha topiladi. Namuna: Ar(Ca)=1*40=40 gr\mol
Ar(Ba)=1*137=137gr\mol
Ar(Cl2)=2*35,5=71 gr\mol
1.Nisbiy atom massa qanday belgilanadi?

2.Quyidagi elementlarning nisbiy atom massalarini toping?

a)H,He,Li,Na,Mg,Be,Ca,K,Rb,Sr,Ba,Cs,Ra,Fr.

b)B,C,N,O,F,Ne,Ar,Cl,Br,Kr,Xe,I,At,Al,Si,P,S,As,Ga,Ge,Bi,Pb.

c)Cu,Ag,Au,Hg,Cd,Zn,Cr,Mn,Fe,V,Sc,Mo,Nb,Pd,Pt,La*,Ac**,W.

3.Ar(H),Ar(C),Ar(F),Ar(Cl),Ar(Ca),Ar(Cu) qiymatlarini yozing!

4.Natriy,kaliy,temir,yod,bor,kalsiy,magniy,bariy,yod,qalay,surma,brom,selen,kremniy,fosfor, xlor,oltingugurt, alyuminiy, va kislorodning nisbiy atom massalarini yozing!

II. Nisbiy molekulyar massa,Molyar massa
Nisbiy molekulyar massa quyidagicha topiladi
Namuna: Mr(H₂SO₄)=1·2+32+16·4=98
Mr(Al(NO₃)₃)=27+(14+16·3) ·3=27+62·3=213
Mr(Na₂CO₃·10H₂O)=23·2+12+16·3+10·(1·2+16)=46+12+48+10·18=286
1. Quyidagi moddalar nisbiy molekular massalarini toping.
a) Mr(CO2),Mr(CO),Mr(P2O5),Mr(P2O3),Mr(CaO).
2.Quyidagi moddalarni nisbiy molekulyar massasini aniqlang. a)Mr(Al₂(SO₄)₃), b)Mr(Ca₃(PO₄)₂), c)Mr(Fe₂(SO₄)₃), d)Mr(Na₂SO₄*10H₂O), e)Mr(CuSO₄*5H₂O), f)Mr(FeSO₄*7H₂O), g)Mr(CaCO₃·MgCO₃).
3.Quyidagi moddalar nisbiy molekular massalarini toping.
1)HCl,2)H₂CO₃,3)NH₄NO₃,4)CH₃COOH,5)CaCO₃,6)CoCO₃,7)Mg(NO₃)₂,8)Ba₃(PO₄)₂, 9)MgSO₄*7H₂O,10)CaSO₄*0.5H₂O,11)Al₂(HPO₄)₃,12)Al₄(P₂O₇)₃,13)(Cr(OH)₂)₂SO₄, 14)Cu₂(OH)₂CO₃,15)KAl(SO₄)₂*18H₂O, 16) Na₂CO₃ • H₂O, 17)Na₂CO₃ • 2H₂O,18)Na₂CO₃ • 5H₂O 19)Na₂CO₃ • 7H₂O 20)Na₂CO₃ • 10H₂O 21)ZnSO₄·7H₂O.22)HNO₃,23)HClO,24)Na₂CO₃,25)Na₃PO₄,26)Ca(OH)₂,27)Al(OH)₃ 28) SO₃,29)N₂O₅,30)Ba₃(PO₄)₂, 31)MgSO₄*6H₂O, 32)CaSO₄*2H₂O