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alexandr1967 [171]
2 years ago
5

The energy of a particular color of green light is 3.81×10-22 kJ/photon. The wavelength of this light is nanometers

Chemistry
1 answer:
max2010maxim [7]2 years ago
4 0
 i think the answer is 527nm
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What happens to the composition of an atom to cause it to become positively or negatively charged?
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3 years ago
What is the mass of 7.50 moles of magnesium chloride, mgcl2?
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3 years ago
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Masja [62]

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3 0
2 years ago
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____ 26. what is the weight percentage of nitrogen in urea, cn2h4o
Paraphin [41]
Weight percentage of nitrogen can be calculated using the following rule:
weight percentage of nitrogen = (weight of nitrogen / weight of urea) x 100

From the periodic table:
molecular mass of carbon = 12 grams
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molecular mass of oxygen = 16 grams

therefore:
mass of nitrogen in urea = 2(14) = 28 grams
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Substitute with the masses in the equation to get the percentage:
weight percentage of nitrogen = (28/60) x 100 = 46.667%
7 0
3 years ago
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