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Pertanyaan

Ke dalam 100 mL larutan NaCl 0,2 M ditambahkan 100 mL larutan AgNO 3 0,2 M. Massa endapan AgCl yang terjadi adalah …. (Ar: Ag = 108; Cl = 35,5; Na = 23; Ksp AgCl = 1 × 10 -10 )

Ke dalam 100 mL larutan NaCl 0,2 M ditambahkan 100 mL larutan AgNO3 0,2 M. Massa endapan AgCl yang terjadi adalah ….

(Ar: Ag = 108; Cl = 35,5; Na = 23; Ksp AgCl = 1 × 10-10)

  1. 1,435 gram

  2. 2,870 gram

  3. 5,740 gram

  4. 14,350 gram

  5. 143,500 gram

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S. Utari

Master Teacher

Mahasiswa/Alumni Universitas Negeri Medan

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Pembahasan

Mol space NaCl space equals space straight M space cross times space straight V space equals space 0 comma 2 space straight M space cross times space 100 space mL space equals space 20 space mmol  Mol space AgNO subscript 3 space equals space straight M space cross times space straight V space equals space 0 comma 2 space straight M space cross times space 100 space mL space equals space 20 space mmol  space space space space space space space space space space space space space space space space space space space NaCl space left parenthesis aq right parenthesis space space space space space plus space AgNO subscript 3 space left parenthesis aq right parenthesis space space rightwards arrow AgCl space left parenthesis straight s right parenthesis space space space space space space space plus space NaNO subscript 3 space left parenthesis aq right parenthesis space space space space space space space space space space  Mula space space space space space space space space space space 20 space mmol space space space space space space space space space space space space 20 space mmol space  Reaksi space space minus 20 space mmol space space space space space space space space space minus 20 space mmol space space space space space space space plus 20 space mmol space space space space space space space space space plus 20 space mmol  Sisa 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 space space space 20 space mmol space space space space space space space space space space space space 20 space mmol  Massa space AgCl space equals space mol space cross times space Mr space equals space 0 comma 02 space mol space cross times space 143 comma 5 straight g divided by mol space equals space bold 2 bold comma bold 87 bold space bold gram

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