Answer:
20 oxygen atoms
Explanation:
Li2SO4 has 4 oxygen atoms, so if there are 5 of that compound then there will be 20 oxygen atoms.
500 mg in g :
1 g ----------- 1000 mg
? -------------- 500 mg
500 x 1 / 1000 => 0.5 g
total mass:
50 g + 0.5 g + 0.1 g => 50.6 g
hope this helps!
This is a chemical property due to radioactivity being a chemical characteristic of uranium. This fact describes its chemical structure.
NH₄NO₃ - ammonium-nitrate.
(NH₄)₂CO₃ - ammonium carbonate.
NH₄CN - ammonium cyanide.
(NH₄)₃PO₄- ammonium phosphate.
Sn(NO₃)₄ - tin(IV) nitrate.
Sn(CO₃)₂ - tin(IV) carbonate.
Sn(CN)₄ - tin(IV) cyanide.
Sn₃(PO₄)₄ - tin(IV) phosphate.
Fe(NO₃)₃ - iron(III) nitrate.
Fe₂(CO₃)₃ - iron(III) carbonate.
Fe(CN)₃ - iron(III) cyanide.
FePO₄ - iron(III) phosphate.
Mg(NO₃)₂ - magnesium nitrate.
MgCO₃ - magnesium carbonate.
Mg(CN)₂ - magnesium cyanide.
Mg₃(PO₄)₂ - magnesium phosphate.
Answer:
1.20 V
Explanation:
The standard cell potential is calculated from the expression
ε⁰ cell = ε⁰ oxidation + ε⁰ reduction
The species that will be reduced is the one with the higher standard reduction potential and the species that will be oxidized will be the one with the more negative reduction potential.
Thus for our question we will have
oxidation:
Pb(s) → Pb2+(aq) + 2 e- ε⁰ oxidation = - ε⁰ reduction
= - ( - 0.13 V ) = + 0.13 V
reduction
Br2(l) + 2 e- → 2 Br-(aq) ε⁰ reduction = +1.07 V
ε⁰ cell = ε⁰ oxidation + ε⁰ reduction = + 0.13 V + 1.07 V = 1.20 V
