Answer:
The percent yield is 42.52%.
Explanation:
Theoretical yield of beryllium chloride = 12.7 g
Actual yield of the beryllium chloride = 5.4 g
The formula used for the percent yield will be :
Now put all the given values in this formula, we get:
The percent yield is 42.52%.
the scientific method allows to find the answers
1) it is not correct to show unmeasured points
2) extend the experiment or graphs without missing points
3) make the graphs without the missing points and analyze the curves
the scientific method is a set of rules and processes to ensure that an investigation is correct and is not influenced by the prejudices of the researcher
1) Science is based on experimental facts, with these facts it performs, tables, graphs, it postulates principles and laws, therefore it is not correct to include values that have not been measured experimentally.
2) In this experiment there are several observations
- Make the graph without these points, which are very few, has 34 experimental points and only 6 missing, this represents a small fraction
% missing =
% missing = 15%
- Extend the study one more month to have more points and that the fraction of missing points decreases
3) If the researcher had presented the graph without the missing points, the sample that he has must already show the trend of the movement of the sun with respect to the days, making curves that fit the data.
In conclusion using the scientific method allows to find the answers
1) it is unethical to show unmeasured points
2) extend the experiment
3) make the graphs without the missing points and analyze the curves
Learn more about the scientific method here:
brainly.com/question/7508826
Answer:
H2S(g) + 2OH^-(aq) --------> S^2-(aq) + 2H2O(l)
Explanation:
We know that the net ionic equation shows the major reaction that occurs in the reaction system.
The molecular reaction equation is;
H2S(g) + 2NaOH(aq) ------> Na2S(aq) + 2H2O(l)
The complete ionic equation is;
H2S(g) + 2Na^+(aq) + 2OH^-(aq) --------> 2Na^+(aq) + S^2-(aq) + 2H2O(l)
Net ionic equation;
H2S(g) + 2OH^-(aq) --------> S^2-(aq) + 2H2O(l)
Answer:
the sun i think because the sun has the greatest gravitational pull
Answer:Beryllium is a silvery-white metal.
Explanation: