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F4 chemistry(10分)

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譯以下物質的formula 同formula massMagnesium fluorideIron(III) nitrateSodium phosphateSodium sulphiteLead(II) chlorideCalcium hydroxideCalcium nitriteCalcium carbonateLron(II) sulphateAmmonium nitratePotassium dichromateSilver iodidePotassium permanganateAluminium sulphateZinc sulphideCopper(II)... 顯示更多 譯以下物質的formula 同formula mass Magnesium fluoride Iron(III) nitrate Sodium phosphate Sodium sulphite Lead(II) chloride Calcium hydroxide Calcium nitrite Calcium carbonate Lron(II) sulphate Ammonium nitrate Potassium dichromate Silver iodide Potassium permanganate Aluminium sulphate Zinc sulphide Copper(II) sulphite Maguesium hydrogencarbonate

最佳解答:

Magnesium fluoride: MgF2 24.3+2(19.0)=62.3 Iron(III) nitrate: Fe(NO3)3 55.9+3[14.0+3(16.0)]=241.9 Sodium phosphate: Na3PO4 3(23.0)+31.0+4(16.0)=164 Sodium sulphite: Na2SO3 2(23.0)+32.1+3(16.0)=126.1 Lead(II) chloride: PbCl2 207.2+2(35.5)=278.2 Calcium hydroxide: Ca(OH)2 40.1+2(1.0+16.0)=74.1 Calcium nitrite: Ca(NO2)2 40.1+2[14.0+2(16.00)]=132.1 Calcium carbonate: CaCO3 40.1+12.0+3(16.0)=100.1 Iron(II) sulphate: FeSO4 55.9+32.1+4(16.0)=152 Ammonium nitrate: NH3NO4 12.0+3(1.0)+12.0+4(16.0)=91 Potassium dichromate: K2Cr2O7 2(39.1)+2(52.0)+7(16.0)=294.2 Silver iodide: AgI 107.9+126.9=234.8 Potassium permanganate: KMnO4 39.1+54.9+4(16.0)=158 Aluminium sulphate: Al2(SO4)3 2(27.0)+3[32.1+4(16.0)]=342.3 Zinc sulphide: Zn3S2 3(65.4)+2(32.1)=260.4 Copper(II) sulphite: CuSO3 63.5+32.1+3(16.0)=143.6 Magnesium hydrogencarbonate: Mg(HCO3)2 24.3+2[1.0+12.0+3(16.0)]=146.3

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