Question

Calculate the percentage of sodium in sodium aluminium fluoride ,Na3AlF6
correct to nearest whole number.

Answer 1

Answer:

molecular weight of Na3AlF6= 23*3+27+19*6

=69+27+114 g = 210g

percentage of sodium = 23*3/210 *100

= 32.85%

Answer 2

For calculating the total percentage of Sodium Aluminium fluoride:

Na3AlF6

= (23*3)+27+(19*6)

=69+27+114

=210g

Percentage of Sodium in sodium aluminium fluoride

69/210*100

= 32.8%

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