rebekah1234567890 rebekah1234567890

20-09-2016
Chemistry

Answered

How many atoms are in a sample of 175 grams of sodium (Na)? The answer needs to be

a x 10^b

Verified Answer :

Willchemistry Willchemistry

27-09-2016

Atomic mass Sodium ( Na ) = 22.98 u.m.a

22.98 g ----------------- 6.02x10²³ atoms
175 g ------------------- ?? atoms

175 x ( 6.02x10²³) / 22.98 =

4.58x10²⁴ atoms of Na

hope this helps!

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