GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
x 1023 atoms of lithium (Li) is equal to how many moles?
A
1.18 moles
B
0.351 moles
C
1.34 moles
D
0.849 moles
Explanation: 

Detailed explanation-1: -One mole of any substance contains 6.02 X 1023 units of that substance. Equally important is the fact that one mole of a substance has a mass in grams numerically equal to the formula weight of that substance.

Detailed explanation-2: -Yes; 1.204 × 1024 is approximately twice Avogadro’s number. Therefore, it is reasonable that this number of atoms would equal about 2 mol.

Detailed explanation-3: -1.204x1024 molecules = 2.00 moles.

Detailed explanation-4: -AI Recommended Answer: There are 18 moles of lithium in 1.204 x 1024 lithium atoms.

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