How many atoms of chlorine are there in 16.5 g of iron (iii) chloride?

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01-01-2017
Chemistry

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How many atoms of chlorine are there in 16.5 g of iron (iii) chloride?

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daniel987 daniel987 · Answer 1 · 2017-01-01T11:58:50+01:00

daniel987 daniel987

01-01-2017

Fecl3 has a RFM of 56 + (35.5 * 3) = 162.5

so find out its moles 16.5 ÷ 162 5 = aprox. 0.1M

then there is a 1 : 3 ratio so 0.1 * 3 = 0.3

then times that by the avogado constant which is 6.02×10^23

0.3 × 6.02×10^23 = ans

hope that helps

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