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Sebanyak 100 mL larutan M g C l 2 ​ 0 , 4 M ditambahkan ke dalam 100 mL larutan N a 2 ​ C O 3 ​ 0 , 4 M . Besarnya massa zat yang mengendap jika diketahui Ks p M g C O 3 ​ = 3.1 0 − 8 dan A r M g = 24 , C = 12 , O = 16 adalah ....

Sebanyak 100 mL larutan ditambahkan ke dalam 100 mL larutan . Besarnya massa zat yang mengendap jika diketahui dan adalah ....
 

  1. 1,68 gram

  2. 3,36 gram

  3. 6,74 gram

  4. 8,40 gram

     

  5. 84,0 gram

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A. Ratna

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

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Pembahasan

M o l space M g C l subscript 2 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 N a subscript 2 C O subscript 3 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 M g C l subscript 2 space left parenthesis a q right parenthesis space plus space space space space space N a subscript 2 C O subscript 3 space left parenthesis a q right parenthesis rightwards arrow 2 space N a C l space space left parenthesis a q right parenthesis space space space space space space plus space space space space M g C O subscript 3 space left parenthesis s right parenthesis space  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 40 space m m o l space  R e a k s i space space space space space minus space 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 plus 80 space m m o l space space space space space space space space space space space plus 40 space m m o l space  S i s a 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 0 space space space space space space space space space space space space space space space space space space space space 80 space m m o l 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    M a s s a space M g C O subscript 3 space equals space m o l space x space M r space equals space 0 comma 04 space m o l space x space space 84 space g divided by m o l space equals space 3 comma 36 space g r a m

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Sebanyak 100 mL larutan M g C l 2 ​ 0,4 M ditambahkan ke dalam100 mL larutan N a 2 ​ C O 3 ​ 0,4 M. Besarnya massa zat yang mengendap jika diketahui Ksp M g C O 3 ​ = 3 . 1 0 − 8 dan Ar Mg = 24, C ...

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