Silver has 2 isotopes ag-107 and ag-109. the percent abundance of ag-107 is 51.35 % and that of ag-109 is 48.65%. find the average atomic mass of silver. show your work.

Given:

Isotopes of silver with atomic masses:

Ag - 107 and Ag - 109

% Abundance of Ag-107 = 51.35 %

% Abundance of Ag-109 = 48.65 %

To determine:

The average atomic mass of Ag

Explanation:

The average atomic mass can be calculated using the formula-

Average Atomic Mass = f1M1 + f2M2 + +fnMn

where:

f = fraction representing the abundance of that isotope

M = atomic mass of that isotope

In the case of silver

Average atomic mass = (51.35/100)*107 + (48.65/100)*109

= 54.9445 + 53.0285 = 107.973 amu

Ans: the average atomic mass for silver is 107.973 amu

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

your answer is c) plasma

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