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Вычислите объем, который занимают 3*10 в 23 степени молекул водорода.
Дано:
Ответы 1
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Дано:N(H₂) = 3·10²³ молекулНайти:V(H₂)Решение:Vm = 22,4 л\мольNa = 6,023 · 10²³ моль⁻¹V = N\Na · Vm = 3·10²³\ 6,023 · 10²³ моль⁻¹ · 22,4 л\моль = 11,2 лОтвет:11,2 л
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Автор:
shiloh28 - 6 лет назад
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пожалуйста, переведите( но не через переводчик) срочно очень!
When her husband told her awful news, she had no idea there would be come.
Ann Storm felt nervous at work that day. She was worried about her husband Matt’s doctor’s appointment that afternoon. When she got home that evening, she went into their bedroom. Matt was waiting for her, his eyes full of tears.
«What?» she shouted in a panic.
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Matt managed to say, «I need a liver transplant; without it I will die.» He was 39 years old.
After months of waiting, a doctor liver became available. Matt and Ann held hands tightly as they drove up the motorway to the hospital. They were still holding hands as Matt was wheeled into the operating room at 3 am. «I might not survive this,» Matt thought. As Ann kissed her husband goodbye, they both cried.
The operation went well, and he was soon back at home. Four months after the transplant, Matt was begging to return to work. He had read 36 books and watched every programme on TV. “I had more energy than ever,» he remembers. “Life was looking good again.»
Then two years later, Ann suddenly fainted at work. She was taken to hospital, where tests showed Ann had suffered liver failure. A brutally honest doctor said that Ann could die at any time.
Now it was Ann’s turn to wait for a donor liver. The Storms were not optimistic. “Two livers for one family?» Ann wondered. In August they decided to return to the Greek island of Kefalonia, where they’d honeymooned ten years earlier. «We knew this could be our last time together and were determined to enjoy it,» says Matt. «We just wanted to be together,» explains Ann. “That was the most important thing.»
It was a shock when, a few weeks after they returned from Kefalonia, a call came from the hospital. Matt drove his wife to Glasgow “like a maniac», and saw the helicopter with the donor liver arrive on the hospital roof. The operation finished at seven the next morning. She left the hospital after ten days.
Before Matt’s transplant, Ann received a call from a nurse asking how long the Storms had been married, and if they really loved each other. «Why are you asking all these questions?» Ann responded. «Because,» the nurse told her, «the transplant experience is so stressful that some couples up.» It has been just the opposite for the Storms.
At the end of a Friday night meal at a local restaurant, Matt urges Ann to put her coat, and Matt puts his arm around her. «That’s the way it is,» Matt adds as they go out into the winter night. As long as we’re together, we can weather and storm.-
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Автор:
lauramay - 6 лет назад
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