February 2019 0 25 Report
Na miareczkowanie próbki NaOH zużyto 15cm3 0,1000M HCl. Jaka jest ilość czystego NaOH w próbce.
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Complete the sentences with the correct form of the word in brackets. 1 Unemployment (employ) in the country has reached an all time high as a result of the recent economic crisis. 2 It’s been said that the use of surveillance cameras in public spaces is an effective (deter)___________________________________ to criminals. 3 Ian’s ___________________(awkward) at meetings seems to be contagious as it makes me feel very uncomfortable too. 4 I’m so sorry about Jack’s behaviour at the party - it was totally (outrage) and frankly, quite embarrassing. 5 I could clearly see the (disappoint) on Anna’s face as she heard that she’d come second in the poetry competition. 6 The mobile phone has certainly ______________ (revolution) the ways in which people communicate. Some for the better, some for the worse.
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For questions 1–10, read the text below. Use the word given in capitals beside each gap to form a word that fits in the same space in the same line. It’s not that I 0 dislike (LIKE) working in this office. That comment would be totally 1___________ (ACCURACY). There are a lot of things that I really like, for example the 2___________ (DEVELOP) programme, which is really 3 ___________ (VALUE) in this profession if you want to get a promotion. What really makes me angry is the 4___________ (RESPONSIBILITY) behaviour of some of the managers here. In recent years, this company has grown so large that we are now an 5___________ (NATIONAL) company with offices in ten cities around the world. As well as being a large company, we are now a 6___________ (CULTURE) company. However, many of the British-based managers don’t seem to realise this and have made no effort to understand their foreign colleagues. This has resulted in a lot of 7___________ (UNDERSTAND) and a feeling of 8___________ (TRUST) in many offices. I’d like to think we can do something about this but I think it is 9___________ (LIKELY). Many managers, however, think such action is 10___________ (NECESSITY) and we should only be concentrating on making a profit.
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For questions 1–10, read the text below and look carefully at each line. Some of the lines are correct, and some have a word which should not be there. If a line is correct, put a tick (). If a line has a word which should not be there, write the word in the space. 0 Last year, while we were on our way to our holiday house, we had had a 00 car crash. It wasn’t a bad accident. Both cars were only slightly 1 damaged and the man with who was in the other car hurt his hand but 2 it was not a bad injury. However, his lawyer suggested taking us to 3 court to get damages. We didn’t want go to court so we had a little 4 choice but to offer him a large amount of money. If you were 5 being in our situation, what would you have done? 6 His lawyer advised to him to accept the offer. However, to our 7 surprise, he has felt that he deserved more than we were offering. 8 After that, the man had refused to discuss any offer we might 9 suggest, even though we asked to him what he wanted from us. 10 So here we are now in court. We are extremely devastated by all this but what can we do?
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For questions 1–10, complete the second sentence so that it has a similar meaning to the first sentence. Use the word in bold and other words. You must use between two and five words in total. 1 I could give you my boat for a month. Where would you go? imagine ________________________my boat for a month, where would you go? 2 They drove for ten hours and then saw the coast. driving They ________________________ten hours before they saw the coast. 3 I finally managed to convince him to come. succeeded I finally ________________________ come. 4 It’s not possible for him to finish the report by ten. finished He ________________________ the report by ten. 5 What time is it? know Do you ________________________? 6 ‘Is the train arriving at eleven tomorrow?’ arriving She asked ________________________ at eleven the next day. 7 David says he will do it so it won’t be necessary for you to go. need David says he will do it so you ________________________ to go. 8 Someone comes and cleans our carpets twice a year have We ________________________ twice a year. 9 The exhibition will take place at Thornley Castle. The exhibition will close on Monday. which The exhibition ________________________, will take pace at Thornley Castle. 10 I am very tired this evening. absolutely I ________________________this evening.
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Choose the correct word or phrase (a, b or c) to complete sentences . 1) He _____________ stealing his coat. accused me to accused me of is me accusing 2) It took me some time, but I did ____________ find out who had been opening my mail. Basically anyway eventually 3) Supposing that you _______ become a doctor, what do you think you would have done? hadn’t weren’t didn’t 4) She __________ in bed when I called. It was two in the afternoon! a) can’t be b) couldn’t have been c) couldn’t be 5) Do you think that your money could _____________when you were on the bus? be stolen have stolen have been stolen (6) I live in Seattle, __________ is in Washington State. a) where b) which c) that (7) He offered me some whisky, ___________ was very strange because he knows I don’t drink alcohol. that who which (8) What I don’t understand ___________ they managed to get there before we did. Is was if is how (9) I was ___________ uneasy before the concert started. absolutely quite utterly (10) Can you tell me as soon as she ___________? Phones is phoning will phone (11) _____________ anything special over Christmas, Mark? Will you have you done Will you be doing Might you do (12) By the end of next week she _________ all her exams. a) will finish b) will have finished c) will be finishing (13) I took far too _________ stuff with me on holiday. Many few much (14) There’s no electricity so the presentation will have to _______without a projector. Do have done be done (15) This is my third computer virus in ten days. I’m totally __________ it! a) impatient of b) irritated at c) fed up with (16) It just ____________ that it’s your first wedding anniversary next week, isn’t it? a) hit me b) come over me c) dawned on me (17) When you are a busy manager like me, it’s not a good idea to ______________ until tomorrow what you have time to do today. a) put off b) put up c) put on (18) The water looks beautiful. Shall we go for a ____________ in the pool? Nap slap dip (19) It’s completely ___________ whether he wants to take a holiday with us or not. a) through him b) out of him c) up to him (20) He suggested ____________ the match until the following day. a) them to postpone b) that they postpone c)them postponing
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Oblicz pH 2% HCl. Gęstość roztworu wynosi 1,1g/cm3
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Ile cm3 0,1000M kwasu solnego zużyjesz na miareczkowanie 100mg CaO?
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Na miareczkowanie 100mg Na2CO3 zużyto 15cm3 kwasu solnego. Jakie jest stężenie molowe kwasu?
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Ze 100g 5% roztworu soli odparowano 15cm3 wody. Oblicz stężenie otrzymanego roztworu
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Oblicz pH roztworu 1% kwasu solnego i 1% roztworu wodorotlenku sodu. Gęstość roztworu jednostkowa.
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