GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When 2.02 X 1023 is multiplied by 3.1 X 10-31, the product is
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6.3 X 10-8
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6.3 X 108
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6.3 X 1054
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6.3 X 10-54
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Explanation:
Detailed explanation-1: -When 6.02 x 1023 is multiplied by 9.1 x 10–31, the product is 0.000 000 547 82.
Detailed explanation-2: -The Avogadro Constant is normally written in standard form. 6.02x1023 = 602, 000, 000, 000, 000, 000, 000, 000 correct to 3 Significant Figures. 1 mole of an element contains 6.02x1023 atoms of that element.
Detailed explanation-3: -Calculate 10 to the power of 23 and get 100000000000000000000000. Multiply 6.02 and 100000000000000000000000 to get 602000000000000000000000.
Detailed explanation-4: -Question: 6.02 x 1023 is known as Avogadro’s number, or Avogadro’s Constant; it tells us how many particles, either atoms or molecules, are in 1 mole, of a substance. Therefore 1 mole = 6.02 x 1023 .
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