Answer: The percent yield of lithium chloride if a reaction starts with 20.0 g lithium hydroxide and yields 6.00 g lithium chloride is 17.2 %
Explanation:
The balanced chemical reaction is
To calculate the moles, we use the equation:
a) moles of
b) moles of
According to stoichiometry :
1 mole of produces = 1 mole of
Thus 0.83 moles of produce= of
Mass of
The theoretical yield of = 34.9 g
The experimental yield of ethanol = 6.00 g
Now we have to calculate the percent yield of ethanol.
Therefore, the percent yield is, 17.2 %
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We can actually deduce here that the important points to consider when conducting the described data collection are:
- The exact temperature at which the crickets chirped less.
- The exact temperature the crickets chirped more.
- Other forces that influence the chirping of the crickets e.g: weather condition, human factor, environmental noise, etc.
<h3>What is data collection?</h3>
Data collection is actually known to be the process of collecting data, information or statistics for the purpose of research and documentation.
Data collection is actually important when research projects are being carried out.
We see that it is very important to note that when carrying out the data collection in Pinky's science fair project, the above important points should be noted or observed.
Learn more about data collection on brainly.com/question/26711803
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Answer: In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize. That is to say, instead of orbiting their respective metal atoms, they form a “sea” of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions. Metals are shiny.
Explanation: Hope this helped!
You haven't shown the structural formula but it's either an Alkene(double bond c=b between 2 carbons) or an alkane
If there is 1 carbon it is methane (methene is not possible as a carbon cannot double bond with itself)
If there are 2 carbons it could be ethane or ethene
If there are 3 carbons it could be propane or propene
If there are 4 carbons it could be butane or butene
If there are 5 carbons it could be pentane or pentene
Etc.
E.g ethane E.g. Ethene
H H H H
| | | |
H---C---C---H C = C
| | | |
H H H H