GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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6.0 grams
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12.0 grams
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8.0 grams
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14.0 grams
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Detailed explanation-1: -Why use 12 grams? This is the theoretical atomic mass of the Carbon-12 isotope (6 protons and 6 neutrons). This means that the atomic mass or atomic weight (12 grams) of carbon is equal to exactly 1 mole of carbon.
Detailed explanation-2: -6 grams of carbon ( 1 mole/ 12 grams of carbon) = 1/2 moles. The answer is 1/2 moles.
Detailed explanation-3: -Solution, There are 3.011 * 10²³ moles of atoms of carbon in 6 gm of carbon. We can simply find the number of atoms by using the mole concept. Hence, there are 3.011 * 10²³ moles of atoms of carbon in 6 gm of carbon.
Detailed explanation-4: -6.0 g of Carbon contains = 6.023 x 10 x 6 = 3.0115 x 1023 Carbon atoms.
Detailed explanation-5: -Expert-Verified Answer There are 0.50 moles precisely.