What are bacteria? Are they good or bad?
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The molecular formula of dye:
A major textile dye manufacturer developed a new yellow dye with a molecular formula .
Given:
Percentage composition:
C = 75.95%
N = 17.72%
H = 6.33%
Molar mass = 240 g
To find: molecular formula of dye
Calculation:
Let's assume the mass of the compound is 100 gm.
So, Mass of C = 75.95 gm
Mass of N = 17.72 gm
Mass of H = 6.33 gm
The number of moles = given mass/mass
Therefore, the number of moles of C = 75.95/12 = 6.33
The number of moles of N = 17.72/14 = 1.27
Number of moles of H =6.33/1 = 6.33
Simplest ratio:
C = 6.33/1.27 = 4.98 =5
N = 1.27/1.27 = 1
H = 6.33/1.27 = 4.98 =5
Therefore, the empirical formula is
The mass of empirical formula = 12 x 5 + 14 + 1 x 5 = 79 gm
Number of moles= molar mass/ empirical formula
n = 240/79 = 3.04 =3
Therefore, molecular formula = empirical formula x n
Hence, molecular formula =
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Answer:
MAIN IDEA
What the authors meant is not to judge people by their looks.
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THE UGLY DUCKLING
The ugly duckling doesn't fit with the other ducklings and grows up, to be a fabulous bird. In the beginning, he is teased because of his looks, in a quote, "As the ugly duckling grew, many animals in the pond criticized him. His feathers were too dark, his neck was too long, and his body was too big. His fellow ducklings refused to recognize that underneath the feathers, the ugly duckling was kind, good, and gentle. The ugly duckling shed many tears because none of the other animals would play with him."
Near the end, however, it states, "He believed that the swans would never be his friends and looked down into the pond in despair. Then, his eyes opened wide, for he saw his reflection. To his great astonishment, the ugly duckling discovered that he was a beautiful, royal swan! The swans welcomed their new friend, whose lovely appearance was matched only by his kind heart. He now felt like he belonged." Throughout the course of the story, the other birds' views change since now they realize how awful they felt for mistreating the ugly duckling.
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THE PRINCESS AND THE PEA
The king and queen didn't believe that she was a princess, so they had her endure the trial of sleeping on twenty mattresses with a pea under the very bottom one. Near the beginning of the story, it states, "The disheveled maiden looked at the king in disbelief. "I am a princess, come to see the prince," she explained, all the while shivering. The king summoned his wife, the queen, for advice. The queen looked at the hideous creature in disbelief, thinking that no princess would ever allow herself to be found in such a state. She thought quickly and came up with a clever plan. The queen put a small pea at the bottom of a bed and piled twenty mattresses on top of it. When the girl arrived at the room, she had to climb a ladder to reach the top of the bed, where she collapsed in exhaustion." This is when the king and queen were in doubt that she was a princess.
However later on it stated, "Bright and early the next morning, the king and queen arrived at the girl's bed-chamber. The queen asked the girl how she had slept the night before. "Absolutely terribly!" bemoaned the maiden. "I have spent the entire night tossing and turning. I don't know whether there is something hard in the bed, or your mattresses are rocks, but my body is black and blue." The queen and the king stared at the maiden in astonishment. Only a real princess would have such delicate skin that she could feel a pea under twenty mattresses. The queen and king brought her to the prince, who was thrilled to meet a real princess with such an independent spirit." As you can see the king and queen believed that she was a princess now because they stated, "Only a real princess would have such delicate skin that she could feel a pea under twenty mattresses."
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CONCLUSION
Both stories focus on how the main character is doubted or mistreated because of how they look, but throughout the stories, the main character proves them wrong.
Explanation:
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