This is a chemical process that uses light to process carbon dioxide in plants
2 answers:
Answer : The process is known as photosynthesis.
Explanation :
Photosynthesis : It is a chemical process which occurs in the green plants or living organism.
During photosynthesis process, the carbon dioxide reacts with water in the presence of sunlight to gives glucose and oxygen as a product.
In the photosynthesis reaction, carbon dioxide and water molecule are the reactants and glucose and oxygen are the products.
The balanced chemical reaction will be,
Hence, the process is known as photosynthesis.
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Let us first calculate the accepted value of sulfate using the molar mass of sodium sulfate.
The molar mass of sodium sulfate is 2 Na + S + 4 O = 2 (22.99) + 32.07 + 4 (16)
Molar mass of Sodium sulfate = 142.05
Molar mass of sulfate = S + 4 (O) = 32.07 + 4 (16) = 96.07
% of sulfate in sodium sulfate = (Molar mass of SO4 / Molar mass of Na2SO4) x 100
% of sulfate = (96.07/142.05) x 100
% of sulfate = 67.6%
Theoretical value for % Sulfate is 67.6%
Percent error is calculated as
Percent Error =
Let us calculate mean for student A.
Mean for student A = (68.6 + 66.2 + 67.1) / 3 = 201.9/3 = 67.3 %
% error for student A =
% error for student A = 0.44%
Mean for student B = (66.7 +66.6 + 66.5)/3 = 199.8 /3 = 66.6 %
% error for student B =
% error for student B = 1.48%
Accuracy is the closeness of experimental values to the true value. This is defined in terms of absolute and percent errors.
Since percent error for student A is lower, we can say that student A was more accurate.
The precision of the data depends on the closeness of experimental values to each other. We can see that experimental values for student B were close to each other.
Therefore we can say that student B was more precise.