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2 years ago

If there are 9.02x103 amu of copper in a sample, how many copper atoms are there in the sample?

Chemistry

1 answer:

Sergeu [11.5K]2 years ago

7 0

Answer:

Average atomic mass = 63.62 amu

Explanation:

Average atomic mass is the weighted average of the individual isotopes.

And thus the weighted average =

(0.6917×63+0.3083×65)⋅amu = ?? amu.

Note that we have not accounted for the less massive copper isotopes that would decrease this mass to the accepted value of

63.55 amu.

Hope this helps! Good luck!

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A sample of iron has a mass of 46.8 grams and a volume of 6 cm3. What is the density of iron?

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Consider the reaction 2NO(g) 1 O2(g) ¡ 2NO2(g) Suppose that at a particular moment during the reaction nitric oxide (NO) is reac

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Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

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Rate in terms of appearance of $NO_2$ = $\frac{1d[NO_2]}{2dt}$

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3 years ago

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maks197457 [2]

Answer:

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Explanation:

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