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Diketahui 500 ml larutan penyangga mengandung 0,1 M NH4CL dan NH3 (Kb=2X10-/min5). Jika pH larutan sama dengan 9, maka tentukan konsentrasi NH3 dalam larutan tersebut?
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Sebanyak 100 ml larutan Na2CO3 0;1 M direaksikan dengan 100 ml Ca(OH)2 0,1 M menurut reaksi: Na2CO3(aq)+Ca(OH)2(aq)->CaCO3(s)+2NaOH(s) hasil reaksi yang terbentuk adlah a. 0,04 mol NaOH b. 0,03 mol CaCO3 c. 0,02 mol NaOH d. 0,001 mol CaC03 e. 0,002 mol Na0H
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Jika zat-zat di bawah ini di buat larutan (dalam air) dengan konsentrasi 1 M, larutan yang mempunyai pH paling besar adalah a. CH3COONa b. NaOH c. HCL d. NaHSO4 e. NH4CL
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HEEEEELLLLPPPPP! NECESITO SABER LAS RESPUESTAS DEL LIBRO DE INGLES 'A MIDSUMMER NIGHT'S DREAM' SON ESTAS. PLEEEASEEEEE!!!!MUY URGENTE:Act I Scene 1: 1.- What must happen for four days before Theseus's wedding? 2.-How did Lysander capture Hermia's heart? 3.- What will happen to Hermia if she doesn't marry Demetrius? 4.- Why is it a good idea for Lusander and Hermia to get married at the rich aunt's house? 5.- Why is Helena suffering, and in her opinion, who is responsible for this?. 6.- Why is Helena going to tell Demetrius about Hermia and Lysander's plans? Acto 1 Scene 2: 1.-What problem has Flute got with his role, and how will he solve it? 2.-Why is it good for Snug to play the part of an animal? 3.-What will the duke do to the actors if they frighten the ladies? 4.- Why do the actors decide to have their rehearsals in the wood? Acto 2 Scene 1: 1.- Why is Oberon angry with Titania? 2.- Why is the Indian boy special to Titania? 3.- What is special about the purple flower called love-in-waiting? 4.- How will Oberon cure Titania of her love for an ugly animal? 5.- According to Oberon, how will Puck know who Demetrius is? Acto 2 Scene 2: 1.-Why doesn't Hermia let Lysander sleep near her? 2.-What does Puck do with the love juice? 3.- How does Lysander feel about Hermia and Helena when he wakes up? Acto 3 Scene 1 1.-What three things does Bottom want to explain to the audience? 2.- What will Puck do to Bottom and why? 3.- How does Titania feel about the ass when she sees him? Acto 3 Secene 2 1.- In Oberon's opinion, what mistake did Puck make? 2.- Who does Demetrius see when he wakes up, and how does he feel about this person? 3.- What reason did Puck give for his mistake? 4.- Why does Puck confuse Lysander and Demetrius and how does he do this? 5.- What will the antidote do to Lysander? Acto 4 Scene 1 1.- In your opinion, what do Titania's questions to Bottom show about her feelings for him? 2.- What does Oberon give Titania and what is the result of this? 3.- What did Titania dream? 4.- Why is the morning light a problem for Oberon and Titania? 5.- Who will get married at the same time as Theseus and Hippolyta? 6.- Why did Hermia and Lysander come into the wood? 7.- What strange thing happened to Demetrius in the wood and what is the result of this? 8.- Why must the lovers return Athens? 9.- How did the Duke's attitude to the lovers change? 10.- How will Bottom tell people about this strange dream? Acto 4 Scene 2 1.- Give reasons why Bottom is the best person to play role of Pyramus. 2.- Why are the actors happy to see Bottom when he enters? 3.- In Bottom's opinion, what will the Duke choose and why? Acto 5 Scene 1 1.- Why doesn't Theseus believe the lovers' strange story about their night in the wood? 2.- Philostrate gives Theseus a piece of paper. What is it? 3.- Why did Philostrate cry and what was strange about this? 4.- In Quince's opinion, why is the lion horrible? 5.- How do Pyramus and Thisby speak to each other? 6.- What happens when Thisby sees the lion? 7.- What does Pyramus do when he finds Thisby's cape and why? 8.- In Theseus' opinion, why isn't an epilogue to the play necessary? 9.- What will the spirits and fairies do after midnight? 10.- Some people will perhaps be offended by the play. What should they do?
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