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calculate the number of aluminium ion in 0.051g aluminium oxide ?
Asked by 2002rishabhverma | 11 Feb, 2016, 07:32: PM
answered-by-expert Expert Answer
M o l a r space m a s s space o f space A l subscript 2 O subscript 3 space equals space 101.96 space g A t o m i c space m a s s space o f space A l space equals space 27 space g I n space 1 space m o l e space o f space A l subscript 2 O subscript 3 space c o n t a i n s space 27 cross times 2 equals 54 space g space A l S o space 0.051 space g space A l subscript 2 O subscript 3 space c o n t a i n s space 0.027 space g space A l N o w comma space 1 space m o l e space A l to the power of 3 plus end exponent space c o r r e s p o n d s space t o space 27 space g space H e n c e comma space 0.027 space g space A l space c o r r e s p o n d s space t o space 0.001 space m o l e s space o f space A l to the power of 3 plus end exponent space i o n s space 1 space m o l e space A l to the power of 3 plus end exponent space c o r r e s p o n d s space t o space 6.023 cross times 10 to the power of 23 space A l to the power of 3 plus end exponent space i o n s H e n c e comma space 0.001 space m o l e s space A l to the power of 3 plus end exponent space c o r r e s p o n d s space t o space 0.006025 cross times 10 to the power of 23 space i o n s space o r space 6.025 space cross times 10 to the power of 20 space A l to the power of 3 plus end exponent space space i o n s
Answered by Prachi Sawant | 12 Feb, 2016, 03:01: PM

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