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​​Massa molekul relatif dari senyawa CuSO 4 ​ .5 H 2 ​ O adalah .... (Ar H = 1, O = 16, S = 32, Cu = 63,5)

​​Massa molekul relatif dari senyawa  adalah .... (Ar H = 1, O = 16, S = 32, Cu = 63,5)

  1. 177,5

  2. 178,5

  3. 185,5

  4. 248,5

  5. 249,5

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J. Siregar

Master Teacher

Mahasiswa/Alumni Universitas Negeri Medan

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begin mathsize 14px style straight M subscript straight r space CuSO subscript 4.5 straight H subscript 2 straight O equals open parentheses 1 space straight x space straight A subscript straight r space Cu close parentheses plus space open parentheses 1 space straight x space straight A subscript straight r space straight S close parentheses plus space open parentheses 9 space straight x space straight A subscript straight r space straight O close parentheses plus open parentheses space 10 space straight x space straight A subscript straight r space straight H space close parentheses straight M subscript straight r space CuSO subscript 4.5 straight H subscript 2 straight O equals open parentheses 1 space straight x space 63 comma 5 close parentheses plus space open parentheses 1 space straight x space 32 close parentheses plus space open parentheses 9 space straight x space 16 close parentheses space plus space open parentheses 10 space straight x space 1 close parentheses space space space straight M subscript straight r space CuSO subscript 4.5 straight H subscript 2 straight O equals open parentheses 63 comma 5 close parentheses plus space open parentheses 32 close parentheses plus space open parentheses 144 close parentheses plus left parenthesis 10 right parenthesis space space space straight M subscript straight r space CuSO subscript 4.5 straight H subscript 2 straight O equals 249 comma 5 end style

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​​​​Massa molekul relatif dari senyawa [Ag ]Cl adalah .... (Ar H = 1, N = 14, Cl = 35,5, Ag = 108)

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