The number of moles in 48 He isA)10B)11C) 12 D) 6

1.	The number of moles in 48 He isA)10B)11C) 12 D) 6
Answer» 12 12 No. of moles=given mass/molar mass=48/4=12 moleThe molar mass of He is 4 g which is usually twice the atomic number and the atomic no. of He is 2 so 2*2=4 12 C) 12

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