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06-03-2024
Chemistry

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Calculate the number of molecules in 124g of phosphorus, P4 (given atomic mass of P = 31.0 u, NA = 6.023 x 10²³ mol⁻1).
a) 2.41 x 10²³
b) 1.21 x 10²³
c) 4.82 x 10²³
d) 6.02 x 10²³

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