I think it is c bc that the only one I see right
Answer:
PH₂ = 0.2 atm
C) About 0.20atm, because H2 comprises 20% of the total number of moles of gas.
Explanation:
To determine the partial pressure of hydrogen gas (H2) in the mixture,
Partial pressure H₂ = Ptotal * xH₂
xH₂ = Mole fraction of H₂ = ∩H₂ / ( ∩H₂ + ∩O₂ + ∩N₂)
xH₂ = 0.01 / (0.01 + 0.015 + 0.025)
xH₂ = 0.01/0.05
xH₂ = 0.2
therefore
PH₂ = pT * xH₂
PH₂ = 1.0 atm * 0.2
PH₂ = 0.2 atm
so the correct option is C) About 0.20atm, because H2 comprises 20% of the total number of moles of gas.
1 mole ------------- 6.02 x 10²³ atoms
( moles Cu) ------- 1.48 x 10²⁵ atoms
moles Cu = ( 1.48 x 10²⁵ ) x 1 / 6.02 x 10²³
moles Cu = 1.48 x 10²⁵ / 6.02 x 10²³
=<span> 24.58 moles of Cu</span>
<span>hope this helps!</span>
Answer:
Fe2O3 - S
PbO2 - D
PbO - I
Fe2O - U
Fe(OH)3 - H
FeO2 - T
FeO - R
Pb2O - G
Pb(OH)2 - O
FeOH - N
Pb(OH)3 - A
Explanation:
In writing the formula of ionic compounds we consider the valency or oxidation state of each ion.
For instance, given the compound iron II oxide. The oxidation states of both iron and oxygen are +2 and -2 respectively. Ignoring the charges, this cancels out and we have FeO as the correct formula of the compound.
For Iron III oxide, the oxidation states of iron and oxygen are +3 and -2 respectively, the both atoms exchange charges. If we ignore the signs and write the exchanged numbers as subscripts we obtain the formula Fe2O3.
