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zahrah
Group Title
How many atoms of silver are in the bracelet If the silver's mass is 0.271kg?
 one year ago
 one year ago
zahrah Group Title
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! Group TitleBest ResponseYou've already chosen the best response.1
0.271kg = = 271g
 one year ago

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

Yahoo! Group TitleBest 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

zahrah Group TitleBest ResponseYou've already chosen the best response.0
i get it wrong
 one year ago

zahrah Group TitleBest ResponseYou've already chosen the best response.0
anyone can help?
 one year ago

shamalamadingdong Group TitleBest 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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