Which of the following would weigh the highes | vedclass

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(A) To determine which weighs the most,we calculate the mass of each substance using the formula: $	ext{Mass} = 	ext{Number of moles} 	imes 	ext{M

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$2$ moles of $CaCO_3$

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(A) To determine which weighs the most,we calculate the mass of each substance using the formula: $	ext{Mass} = 	ext{Number of moles} 	imes 	ext{Molar mass}$.$(a)$ Molar mass of $CaCO_3 = 40 + 12 + (3 	imes 16) = 100 \, g/mol$. Mass of $2$ moles $= 2 	imes 100 = 200 \, g$.$(b)$ Molar mass of $CO_2 = 12 + (2 	imes 16) = 44 \, g/mol$. Mass of $2$ moles $= 2 	imes 44 = 88 \, g$.$(c)$ Molar mass of sucrose $(C_{12}H_{22}O_{11}) = (12 	imes 12) + (22 	imes 1) + (11 	imes 16) = 144 + 22 + 176 = 342 \, g/mol$. Mass of $0.2$ moles $= 0.2 	imes 342 = 68.4 \, g$.$(d)$ Molar mass of $H_2O = (2 	imes 1) + 16 = 18 \, g/mol$. Mass of $10$ moles $= 10 	imes 18 = 180 \, g$.Comparing the values: $200 \, g > 180 \, g > 88 \, g > 68.4 \, g$. Therefore,$2$ moles of $CaCO_3$ weigh the highest.

Which of the following would weigh the highest?

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