Рассчитайте массовую долю выхода продукта (в%) от теоретически возможного, если при взаимодействии 980 г 15%-го раствора серной кислоты с 280 г гидроксида калия было получено 62,25 г сульфата калия
Mrs S: Excuse me, can you help me? Shop Assistant: Yes of course, what can I do for you? Mrs S: I bought this T-shirt for my son this afternoon, but it doesn't fit him, it's too small. Shop Assistant: Do you want to change it or get a refund. Mrs S: I'd like to change it for a larger size. Do you have these in large? Shop Assistant: I'll just check. Let's see, yes we have large or extra large, which would you prefer? Mrs S: I think large will be fine, it's for my son. Shop Assistant: That's fine, if it doesn't fit just bring it back again. If you take it to the customer service desk, they'll sort it all out for you. Mrs S: Thank you. Just as a matter of interest do you give refunds? Shop Assistant: Yes, of course. You can bring any clothing items back up to three weeks after purchase, but you must keep the reciept. Mrs S: I see, thanks again. Shop Assistant: You're welcome.
I began to think about my future profession at the age of 15. My favourite subjects at school were mathematics and English. My teachers were well-educated people with broad outlook and deep knowledge of the subjects. They encouraged me in my desire to become an economist. Now I know well what I'm going to do after leaving school. I didn't make a blind choice. It was not a sudden flash either. I opted for a career in business economics. I came to this decision little by little. It was my father who aroused my interest in that field. You see, he is a chief economist at a large plant and I often saw him work at home and discuss business matters with his colleagues. Later I got interested in the matter.
Economics is the science of making choices, which is based upon the facts of our everyday life. Economists study our everyday life and the system, which affects it. They try to describe the facts of the economy in which we live and to explain how the system works. The science of economics is concerned with all our material needs and wants.
To become a good specialist in economic matters and business one must know many sciences, such as business economics, finance and credits, statistics, history of economic theory and philosophy, mathematics, as well as economic management, trade business and, of course, marketing, which is a modern philosophy of business.
It is very important for a specialist in business matters to be a skilful user of computers and to speak at least one foreign language. It should better be English as it is the most popular language of international business communication. You'll be able to follow business developments in the world by listening to radio and TV news, by reading newspapers or magazines, or by getting in contact with your business partners abroad.
If I pass my entrance exams successfully and enter the University I'll try to study to the best of my abilities to achieve my life's ambition and to justify the hopes of my parents. I also hope that I'll never regret my choice and get an interesting and a well-paid job afterwards.
Maybe I should consider a job in a world of banking. There's a surprisingly wide range to choose from, in the financial world. For example, I could work for a big international company, run my own company, write about economics as a financial journalist, run my own International Business Research Agency, raise money for charities or just sell famous paintings...
Shop Assistant: Yes of course, what can I do for you?
Mrs S: I bought this T-shirt for my son this afternoon, but it doesn't fit him, it's too small.
Shop Assistant: Do you want to change it or get a refund.
Mrs S: I'd like to change it for a larger size. Do you have these in large?
Shop Assistant: I'll just check. Let's see, yes we have large or extra large, which would you prefer?
Mrs S: I think large will be fine, it's for my son.
Shop Assistant: That's fine, if it doesn't fit just bring it back again. If you take it to the customer service desk, they'll sort it all out for you.
Mrs S: Thank you. Just as a matter of interest do you give refunds?
Shop Assistant: Yes, of course. You can bring any clothing items back up to three weeks after purchase, but you must keep the reciept.
Mrs S: I see, thanks again.
Shop Assistant: You're welcome.