Answer: 1.22x10^20 molecules
Explanation:
N2 + 3H2 —> 2NH3
Molar Mass of H2 = 2g/mol
Mass conc of H2 = 6.09×10^−4
n = Mass conc / molar Mass
n = 6.09×10^−4 / 2 = 3.045x10^-4mol
From the equation,
3 moles of H2 produced 2moles of NH3.
Therefore, 3.045x10^-4mol of H2 will be produce = (3.045x10^-4x2) /3
= 2.03x10^-4mol of NH3
1mole of NH3 contains 6.02x10^23 molecules.
Therefore, 2.03x10^-4mol of NH3 will contain = (6.02x10^23x2.03x10^-4) = 1.22x10^20 molecules
Answer:
NiBr₃ + Al₂S₃ ⇒ NiS₃ + Al₂Br₃
Explanation:
A double replacement reaction is a reaction in which the cations switch anions.
In the reaction, the two cations are Al and Ni. The cations are Br and S.
Put each cation with the opposite anion: Ni with S and Al with Br.
The products would be NiS₃ and Al₂Br₃.
The full reaction is NiBr₃ + Al₂S₃ ⇒ NiS₃ + Al₂Br₃.
Hope that helps.
The answer is 1.884 ounce.
I think it is one,three, and four
