How many moles of magnesium are there in 10.00 g? 2. how many atoms of oxygen are there in 0.0327 moles of na2so4?
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hey here is ur answer.
moles of Mg=given mass/molar mass...
so moles=10/24
. =0.4167
2.moles of Na2SO4=0.0327
since 1 mole of Na2SO4 has 4x6.02x10^23 atoms...
so
0.0327 moles have,.... =0.0327x4x6.02x10^23 =7.848x10^22 atoms
moles of Mg=given mass/molar mass...
so moles=10/24
. =0.4167
2.moles of Na2SO4=0.0327
since 1 mole of Na2SO4 has 4x6.02x10^23 atoms...
so
0.0327 moles have,.... =0.0327x4x6.02x10^23 =7.848x10^22 atoms
yashg05090:
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