Answered

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How many atoms of silver are in a bracelet that has a mass of 13.94 grams?

Sagot :

ardni313

Number of Silver atoms : N = 7.8 x 10²² atoms

Further explanation

Given

mass of bracelet : 13.94 g

Required

Number of atoms

Solution

Assuming the bracelet consists entirely of silver

mol of silver :

= mass : molar mass

= 13.94 g : 107,8682 g/mol

= 0.129

Number of atoms :

N = n x No(No = Avogadro's number)

N = 0.129 x 6.02 x 10²³

N = 7.8 x 10²² atoms

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