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KIM – 3.1/4.1/5/1.1




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                    4. Hitung tekanan uap larutan urea (Mr = 60) 10% dalam pelarut B (Mr = 40), jika tekanan uap

                      jenuh pelarut B adalah 580 mmHg.
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                    5. Penurunan  tekanan  uap  suatu  larutan  yang  terdiri  dari  campuran  15,6  gram  zat  X  non
                      elektrolit dalam 54 gram air adalah 2,25 cmHg. Jika tekanan uap larutan 33,75 cmHg, massa

                      rumus (Mr) xat X adalah …
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                    6. Tekanan uap jenuh air pada temperatur 18 0C adalah 15,5 mmHg. Jika kedalam 14,4 gram
                      air (Mr=18) dilarutkan 36 gram glukosa (Mr=180), tentukan tekanan uap larutan pada suhu

                      tersebut.
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                                              Kegiatan Belajar 2




                  1. Bacalah teks tentang “ Sifat koligatif larutan” dalam buku teks pelajaran (BTP) Kimia Kelas XII
                     halaman 11  s.d. 12
                  2. Kemudian, jawablah pertanyaan – pertanyaan berikut !
                       No.                  Pertanyaan                                Jawaban


                       1.   Berdasarkan    pengertian   sifat   koligatif
                            larutan, kaitkan hubungan jumlah zat terlarut
                            dengan  kenaikan  titik  didih  larutan  dengan

                            benar!
                       2.   Gambarkan  bagaimana  hubungan  antara

                            besarnya molalitas larutan terhadap kenaikan
                            titik didih larutan?

                       3.   Dua  orang  siswa  melakukan  praktikum
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