tracyrosner tracyrosner

28-09-2016
Chemistry

Answered

you give a sample containing .90 moles of a substance

Ahow many atoms are in the sample if the substance is copper

Verified Answer :

Willchemistry Willchemistry

07-10-2016

1 mole Cu ------------------ 6.02x10²³ atoms
0.90 moles Cu ------------ ??

0.90 x ( 6.02x10²³ ) / 1 =

= 5.41x10²³ atoms

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