Question

10 oxizi, 10 acizi, 10 baze, 10 saruri
Cerinta:

- denumirea
- formula
- masa molara

Answer 1

Oxizi

K2O  oxid de potasiu              M=2.39+16=94

Na2O  oxid de natriu               M= 2.23+16=62

CaO   oxid de calciu                 M=40+16=56

BaO     oxid de bariu                M=137+16=153

Al2O3   oxid de aluminiu             M=2.27+3.16=102

CuO       oxid cupric                    M=64+16=80

 Fe2O3     oxid feric                     M=2.56+3.16=160

CO2         dioxid de carbon         M=12+2.16=44

SO2          dioxid de sulf             M=32+2.16=64

P2O5         pentoxid de fosfor     M=2.31+5.16   =142



Baze

NaOH               hidroxid de natriu                     M=23+1 +16=40

KOH                 hidroxid de potasiu                   M=39+16+1=56

Mg(OH)2           hidroxid de magneziu               M=24+2.16+2=58

Zn(OH)2           hidroxid de zinc                           M=65+2.16+2=99

Sn(OH)2           hidroxid stanos                         M=119+2.16+2=153

Sn(OH)4           hidroxid stanic                           M=119+4.16+4=187

Cu(OH)2          hidroxid cupric                            M=64+2.16+2=98

Fe(OH)2          hidroxid feros                               M=56+2.16+2=90

Al(OH)3           hidroxid de aluminiu                      M=27+3.16+3=78

Fe(OH)3          hidroxid feric                                    M=56+3.16+3=107



Acizi

HF                       acid fluorhidric                               M=1+19=20
HCl                      acid clorhidric                                 M=1+35,5=36,5

HBr                       acid bromhidric                             M=1+80=81


H2S                       acid sulfhidric                             M=2+32=34

H2CO3                acid carbonic                                  M=2+12+3.16=62

H2SO3                 acid sulfuros                                 M=2+32+3.16=82

H2SO4                acid sulfuric                                    M=2+32+4.16=98

HNO3                acid azotic                                         M=1+14+3.16=63    

H3PO3            acid fosforos                                       M=3+31+3.16=82

H3PO4              acid fosforic                                     M=3+31+4.16=98



Saruri

KCl                        clorura de potasiu                      M=39+35,5=74,5

NaNO3                  azotat de natriu                           M=23+14+3.16=85

CaSO3                    sulfit de calciu                            M=40+32+3.16=120

ZnSO4                  sulfat de zinc                                  M=65+32+4.16=161

CuCO3                    carbonat de cupru                       M=64+12+3.16=124

MgSO4                   sulfat de magneziu                        M=24+32+4.16=104

AlPO4                     fosfat de aluminiu                           M=27+31+4.16=106

FeSO4                   sulfat feros                                      M=2.56+3.32+64=272

Fe2(SO4)3              sulfat feric                                     M=2.56+3.32+12.16=
                                                                                          400
Al2S3                        sulfura de aluminiu        M=2.27+3.32=150