Answer:
I think it's B, good luck
The correct answer is option B. <span>The formula actual yield / theoretical yield is used to calculate the percent yield of a reaction. This value is a measure of how much product is produced relative to the what is supposed to be produced. It can be associated with efficiency. However, this value is specific for process which produces something like a chemical reaction.</span>
Answer: The vapor pressure of Fe at is 465 mm Hg
Explanation:
The vapor pressure is determined by Clausius Clapeyron equation:
where,
= initial pressure at = 400 mm Hg
= final pressure at = ?
= enthalpy of vaporisation = 351 kJ/mol = 351000 J/mol
R = gas constant = 8.314 J/mole.K
= initial temperature = 2890 K
= final temperature = 2920 K
Now put all the given values in this formula, we get
Thus the vapor pressure of Fe at is 465 mm Hg
Answer:
Molecular composition of iodine heptafluoride is one iodine atom and seven fluorine atoms.
Explanation:
The molecular formula of iodine heptafluoride is and it is also known as Iodine (VII)fluoride.
According to the VSEPR theory,The geometry of the iodine heptafluoride is "petagonal bipyrmidal."
From the molecular formula of iodine heptafluoride has seven atoms of fluorine and only one atom of iodine.
Therefore, the molecular composition of iodine heptafluoride is one iodine atom and seven fluorine atoms.
<span>Fluorine has the highest electronegativity of all the elements, with the largest nuclear charge fluorine has the strongest pull force. Fluorine has a single empty spot in its valence electron shell. One electron added will fill that shell.
Lithium on the other hand has a single valence electron so adding an electron doesn't fill the shell.</span>