GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many moles of silver atoms are in 1.8 X 1020 atoms of silver?
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3.0 X 10-4
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3.3 X 10-3
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3.0 X 102
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1.1 X 1044
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Explanation:
Detailed explanation-1: -The number of atoms of silver is equal to 5 moles.
Detailed explanation-2: -For any substance there are 6.022 x 1023 particles per mole. In this case, divide 1.8 x 1024 atoms by Avogadro’s Number to get 3.0 moles of S.
Detailed explanation-3: -3.01 x 1023 atoms of silver divided by 6.02 x 1023 atoms of silver per mole of silver gives 0.500 moles of silver.
Detailed explanation-4: -1.5x1020 molecules = 2.5x10-4 moles.
There is 1 question to complete.