2015 The latest version of Gansu Province. special materials selection and examination of t

2015 The latest version of Gansu Province. special materials selection and examination of t

Kimia Sekolah Menengah Pertama Diketahui Mr dari (XH4)2 SO4 = 132 jika Ar H = 1, O = 16, S = 32, hitunglah ArX! ​

Diketahui Mr dari (XH4)2 SO4 = 132 jika Ar H = 1, O = 16, S = 32, hitunglah ArX! ​

Jawaban:

Ar X= 14

Penjelasan:

Mr= 2 x Ar X + 2 X 4 X Ar H + Ar S + 4 x Ar O
132= 2 x Ar X + 8 x 1 + 32 + 4 x 16
132= 2 x Ar X + 8 + 32 + 64
132= 2 x Ar X + 104
132 - 104= 2 x Ar X
28= 2 x Ar X
Ar X= 14

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