robertdavis90 robertdavis90

18-05-2021
Chemistry

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Is anyone good at chemistry if so Is it possible could someone help me please

NO LINKS I REPEAT NO LINKS

Is anyone good at chemistry if so Is it possible could someone help me please NO LINKS I REPEAT NO LINKS class=

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Аноним Аноним

19-05-2021

344.0 / 68.8 = 5 (no.of half life that have elapsed)

Mass remains = (1/2)^n × (original mass)

= (1/2)^5 × 200

= (0.5) ^5 × 200

= 0.03125 × 200

= 6.25 grams

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