Answer:
Percent yield = 90.8%
Explanation:
The reaction of Fe with S to produce FeS is:
Fe + S → FeS
<em>Where the moles of Fe added in excess of S are the moles of FeS</em>
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Now, percent yield is defined as 100 times the ratio between actual yield (13.8g of FeS) and theoretical yield (15.2g FeS):
Percent yield = 13.8g / 15.2g * 100
<h3>Percent yield = 90.8%</h3>
Answer:
Hi, there your answer is A. As the frequency of a wave increases, the shorter its wavelength is.
Explanation:
When frequency increases, wavelength decreases.
Hope this Helps :)
The answer is not a whole number but its 3.12903225806452.....
The correct answer is (a)
It is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion.
The explanation:
- the bond between oxygen and phosphorus is covalently.
when A covalent bond is a bond in which electrons are shared. \nd the ionic bond, electrons are completely transferred. In this case phosphate ion (PO4)-3 is covalent.
- that's means that the choice C and D don't be the correct answer.
-Additionally, since the charge is on the oxygen atoms due to the bonding with phosphorus, so we can say that the charge is on the entire ion and not just on the phosphorus atom so,the answer B also not the correct answer.
and the correct one is (A)