Draw the shadows formed in the following cases. Explain the terms used in the diagrams An object placed in front of a point source of light. A source of light with an object smaller than the source kept in front of it. H. A source of light with an object larger than the source kept in front of it.
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Mass of boron in it = 0.096 g
Therefore % composition by weight of boron = (Mass of boron/ Total mass of compound)*100
= (0.096/0.24)*100
= 40 %
Mass of oxygen in the compound = 0.144 g
Therefore % composition by weight of oxygen = (Mass of oxygen/ Total mass of compound)*100
= (0.144/0.24)*100
= 60 %.
The compound is made up of only boron and oxygen, therefore the % composition of the componenets sum to 100% (60% + 40%)
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Answer:
Mass of boron in it = 0.096 gTherefore % composition by weight of boron = (Mass of boron/ Total mass of compound)*100= (0.096/0.24)*100= 40 %Mass of oxygen ..
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