Answer:
The partial pressure of hydrogen gas at equilibrium is 1.26 atm
Explanation:
Let's use the molar fraction to solve this:
Molar fraction = Moles of gas / Total moles
Molar fraction = Gas pressure / Total pressure
Without equilibrium, we can think that the total system pressure is the sum of the partial pressures of each gas.
1 atm N₂ + 2 atm H₂ = 3 atm
Molar fraction for H₂ = 2 atm / 3atm → 0.66
Let's replace the molar fraction in equilibrium
Gas pressure / 1.9 atm = 0.66
Gas pressure = 1.26atm
Coppers molecular weight is 63.546 u
The statement comparing ionic and covalent bonds which is correct is; Choice B; Covalent bonds tend to be less polar than ionic bonds
- Although, covalent bonds between atoms of different elements are characterized as polar bonds, but the degree of polarity varies widely. Some bonds between different elements are only minimally polar, while others are strongly polar.
Ultimately, Ionic bonds can be considered the extreme in polarity, with electrons being transferred rather than shared.
- Ionic bonds are formed between highly electropositive elements (metals) and highly electronegative elements (non-metals).
- Covalent bonds are characterized by the the sharing of electrons between atoms unlike the complete transfer of electrons in ionic bonds.
Among the choices, the statement which is correct when comparing covalent bond to ionic bond is: Choice B: Covalent bonds tend to be less polar than ionic bonds.
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It makes salt and water :)
