Hannahdavy9338 Hannahdavy9338
  • 28-05-2018
  • Chemistry
contestada

Copper (cu) is a transition element used in the making of coins. calculate the mass in grams of 0.0420

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kenmyna
kenmyna kenmyna
  • 06-06-2018
 The  mass  in grams  of 0.0420  moles is  calculated  as  below


mass =  moles x molar mass

the molar mass  of Cu=  63.5 g/mol
moles = 0.0420  moles

mass = 63.5 g/mol  x 0.0420= 2.667 grams  of Cu
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