STANDARD Chemistry Molar Mass and Mole Calculations Match the Following Question
Match the mass of elements given in column I with the no. of moles given in column II and mark the appropriate choice.
(A-iv), (B-iii), (C-ii), (D-i)
(A-i), (B-iii), (C-ii), (D-iv)
(A-iii), (B-ii), (C-i), (D-iv)
(A-ii), (B-i), (C-iv), (D-iii)
Correct Answer
Detailed Explanation
The number of moles is calculated by dividing the mass by the molar mass. For He: 28/4 = 7 moles, Na: 46/23 = 2 moles, Ca: 60/40 = 1.5 moles, Al: 27/27 = 1 mole. The correct matches are (A-ii), (B-i), (C-iv), (D-iii).
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