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3 years ago

If I have 2 moles of apple, how many apples do I have?

2 answers:

6 0

To work out the number of items from the number of moles use the following formula:

N = n*NA

N = number of particles/items
n = number of moles
NA = Avogadro’s number ≈ 6.02*10^23

Therefore:

N = (2)*(6.02*10^23)
N = 1.20*10^24 apples

Zielflug [23.3K]3 years ago

5 0

Answer

not too sure, but perhaps, 24

Explanation:

1 mole = 12 apples

2 moles = 24 apples

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Answer: The p-function of $Zn^{2+}$ and $NO_3^{-}$ ions are 2.51 and 2.14 respectively.

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Putting values in above equation, we get:

$M=\frac{(0.0062\times 1)+(0.0084\times 1)}{1+1}\\\\M=0.0073M$

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For zinc ions:

$\text{p-function of }Zn^{2+}\text{ ions}=-\log[Zn^{2+}]$

$\text{p-function of }Zn^{2+}\text{ ions}=-\log(0.0031)\\\\\text{p-function of }Zn^{2+}\text{ ions}=2.51$

For nitrate ions:

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$\text{p-function of }NO_3^{-}\text{ ions}=-\log(0.0073)\\\\\text{p-function of }NO_3^{-}\text{ ions}=2.14$

Hence, the p-function of $Zn^{2+}$ and $NO_3^{-}$ ions are 2.51 and 2.14 respectively.

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