September 2018 1 42 Report
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hitunglah pH larutan berikut
a.Ba(oH)2 0,005 M
b.Hcl 0,02 M
c.CH3COOH 0,1 M (ka=10^-5)
d.NH3 0,1 M (kb=10^-5)
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Once there was a farmer from laos. Every morning and every evening he ploughed his field with his buffalo. One day, a tiger saw the farmer and his buffalo working. The tiger was suprised to see big animal listening to small animal. He wanted to know more about the buffalo and the man. After the man home, the tiger spoke to the buffalo, “you are so big and strong. Why do you everything the man tells you ?” the buffalo answer, “oh, the man is very intelligent.” The tiger asked, “can you tell me how intelligent he is?” “No, I can’t tell you,”said the buffalo “But you can ask him”. So the next day the tiger said to the man, “can see your intelligence?” but the man answered, “it’s a home.” “can you go and get it?” asked the tiger. “Yes,” said the man, “But i’m afraid you will kill my buffalo when i’m gone. Can i tie you to a tree?” After the man tied the tiger to the tree, he didn’t go home to get his intelligent. He took his plough and hit the tiger. Then he said, “Now you know about my intelligence even if you haven’t seen it. 1. What lesson can we learn from the story ? 2.what the main idea from the story 3.what the main idea of paragrafh 1,2,3 and last paragraf
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Jika harga kw pada suhu 100°c dianggap 10^-12 berapa konsentrasi ion H+ dan OH- dalam air murni pada suhu tersebut
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