Answer:
Mass = 20 g
Explanation:
Given data:
Number of moles of He = 5 mol
Mass of He = ?
Solution:
Formula:
Number of moles = mass/ molar mass
Molar mass = 4 g/mol
by putting values,
5 mol = Mass / 4 g/mol
Mass = 5 mol × 4 g/mol
Mass = 20 g
Answer: C. Quart
Explanation:
Quart is a unit of measurement for liquids and is equivalent to 2 pints.
Answer:
Keq=0.866
Explanation:
Hello,
In this case, the undergone chemical reaction is:

In such a way, since 0.0055 mol of N₂O₄ remains in the flask, one infers that the reacted amount (
) was:

In addition, the produced amount of NO₂ is:

Finally, considering the flask's volume, the equilibrium constant is then computed as follows:

Best regards.
I think it’s hydroxybutanal