Определить массу 61,25% раствора серной кислоты,в которой нужно растворить 40 грамм серного ангидрида,чтобы получить 73,5% раствора серной кислоты.

The clock struck six and, having swept up the hearth, Beth put a pair of slippers down to warm. Somehow the sight of the old shoes had a good effect upon the girls, for Mother was coming, and everyone brightened to welcome her. Meg stopped lecturing, and lighted the lamp, Amy got out of the easy chair without being asked, and Jo forgot how tired she was as she sat up to hold the slippers nearer to the blaze. "They are quite worn out. Marmee must have a new pair." "I thought I'd get her some with my dollar," said Beth. "No, I shall!" cried Amy. "I'm the oldest," began Meg, but Jo cut in with a decided, "I'm the man of the family now Papa is away, and I shall provide the slippers, for he told me to take special care of Mother while he was gone." "I'll tell you what we'll do," said Beth, "let's each get her something for Christmas, and not get anything for ourselves."

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указательные местоимения-(этот тот такой самый там тогда оттуда так сюда)