sangel2019 sangel2019

09-05-2018
Chemistry

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If 5.6 g of Copper (II) oxide are used, how many moles of copper metal will be produced?

Respuesta :

kenmyna kenmyna

18-05-2018

When copper (ii) oxide is heated in presence of hydrogen gas it produces copper metal and water vapor.
that is

CuO + H2 = Cu + H2O

The moles of copper metal produced is calculated as below
find the moles of CUO used

moles = mass/molar mass
=5.6/79.5 =0.07 moles

by use of mole ratio between CUO:Cu which is 1:1 the moles of Cu is also

=0.007 moles of Cu

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