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How many atoms of silver are in the bracelet If the silver's mass is 0.271kg?
 one year ago
 one year ago
How many atoms of silver are in the bracelet If the silver's mass is 0.271kg?
 one year ago
 one year ago

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Yahoo!Best ResponseYou've already chosen the best response.1
moles = given mass / molecular mass = 271/107
 one year ago

Yahoo!Best ResponseYou've already chosen the best response.1
no of atoms = n * 6.022 * 10^23 where n is no of moles
 one year ago

shamalamadingdongBest ResponseYou've already chosen the best response.0
He's saying first convert the Kg in to grams, then divide the grams of silver by it's molar mass to find the amount of moles, then using avogadros number you can convert to atoms.\[.271kg\times{1000g\over1kg}=271g\]then using\[{moles}={grams\over molar\space mass} \] We know both the molar mass and grams so solve for moles. Then after finding moles put it in the equation for finding atoms.\[moles\ \times \frac{6.022\times10^{23}atoms}{1moles}\]
 one year ago
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