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3 years ago

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10. Given the relative abundance of the following naturally occurring isotope of silver, calculate the average atomic mass of si

lver. Show your work.
silver-107: 52.00% 106.905 amu
silver-109: 48.00% 108.905 amu

1 answer:

Kamila [148]3 years ago

8 0

106.905/52.00 equals 205.58
108.905/48.00 equals 226.88

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Complete Question

Calculate the pH during the titration of 20.00 mL of 0.1000 M trimethylamine, (CH3)3N(aq), with 0.2000 M HClO4(aq) after 9.48 mL of the acid have been added.Kb of trimethylamine = 6.5 x 10-5.

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From the question we are told that

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The concentration of HClO4(aq) is $C_h = 0.200 M$

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=> $N_t = 0.100 * 20$

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$pOH = -log(6.5*10^{-5}) + log [\frac{1.896}{2} ]$

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