prissypo
Answered

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Be sure to answer all parts. How many moles of water contain each of the following number of molecules?

Report your answer using appropriate number of significant figures.

a. 9.52 x 1026 molecules
_____ mol

b. 7.81 x 1022 molecules
_____mol

c. 2.5 % 1023 molecules
_____ mol​

Sagot :

ziimmii

Answer:

1.520

1.333

15.899

Explanation:

its very easy

indrawboy

N = n x No

No = avogadro's number = 6.02 x 10²³

n = mol

a. 9.52 x 10²⁶ : 6.02 x 10²³ = 1.58 x 10³ (3 sig figs)

b. 7.81 x 10²² : 6.02 x 10²³ = 1.30 x 10⁻¹ = 0.130 (3 sig figs)

c. 2.5 x 10²³ : 6.02 x 10²³ = 0.42 (2 sig figs)

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