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Pertanyaan

Sebanyak 100 mL larutan Pb(NO 3 ) 2 0,4 M dicampurkan dengan 100 mL larutan K 2 SO 4 0,4 M. Jika Ksp PbSO 4 = 4.10 -8 . Massa PbSO 4 yang mengendap sebanyak.. (Ar Pb = 207 ; S = 32 ; O = 16 ; K = 39)

Sebanyak 100 mL larutan Pb(NO3)2 0,4 M dicampurkan dengan 100 mL larutan K2SO4 0,4 M. Jika Ksp PbSO4 = 4.10-8. Massa PbSO4 yang mengendap sebanyak..

(Ar Pb = 207 ; S = 32 ; O = 16 ; K = 39)

  1. 12,12 gram

  2. 24,24 gram

  3. 30,30 gram

  4. 60,60 gram

  5. 303 gram

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J. Siregar

Master Teacher

Mahasiswa/Alumni Universitas Negeri Medan

Jawaban terverifikasi

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Pembahasan

M o l space P b left parenthesis N O 3 right parenthesis subscript space 2 end subscript space equals space 100 space m L space x space 0 comma 4 space M space equals space 40 space m m o l space  M o l space K subscript 2 S O subscript 4 space equals space 100 space m L space x space 0 comma 4 space M space equals space 40 space m m o l  space space space space space space space space space space space space space space space space space space space space P b left parenthesis N O subscript 3 right parenthesis subscript 2 space left parenthesis a q right parenthesis space plus thin space K subscript 2 S O subscript 4 space left parenthesis a q right parenthesis space space rightwards arrow space P b S O subscript 4 space end subscript left parenthesis s right parenthesis space space space plus space 2 space K N O subscript 3  M u l a space space space space space space space space space space space space 40 space m m o l space space space space space space space space space space space space space space space 40 space m m o l  R e a k s i space space space space space space space minus 40 space m m o l space space space space space space space space space space minus 40 space m m o l space space space space space space space space space space space plus 40 space m m o l space space space space space space space space plus 80 space m m o l  S i s a space space space space space space space space space space space space space space space 0 space space space space space space space space space space space space space space space space space space space space space space space space space space space space 0 space space space space space space space space space space space space space space space space space space space space space space space space space space 40 space m m o l space space space space space space space space space space space space space 80 space m m o l    M a s s a space P b S O subscript 4 equals space m o l space x space M r space equals space 0 comma 04 space m o l space x space 303 space g divided by m o l space equals space 12 comma 12 space g r a m

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