This problem is providing us with the width, 14.15 inches and height, 10.61 inches of a computer monitor, so the area of this display in square meters is required. At the end, the result turns out to be 0.09659 m².
<h3>Dimensional analysis:</h3>
In chemistry, we use dimensional analysis in order to figure out results given some numerical information; however, despite not having a specific formula for every problem, one can use the required units as a reference to come up with a convenient mathematical setup.
In this case, one can firstly calculate the area in square inches:
Next, we use the equivalence statement relating inches with meters, 1 in = 0.0254 m, to obtain:
Learn more about dimensional analysis: brainly.com/question/10874167
Answer:
Explanation:
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In this case, for this calorimetry problem, it is possible for us to infer that the heat of the reaction of dissolution of KNO3 is absorbed by the solution composed by the former and water so that we can write:
Thus, given the mass, specific heat and temperature of the solution, we plug in the data to obtain the heat absorbed, by the reaction:
Also, we can say the the heat released by the solution was -3219.25 J.
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The method that can be used to separate the mixture is chromatography.
<h3>
What is chromatography?</h3>
"Chromatography" is obtained form a Greek word which literarily means, color writing. It is a method of separation which is common in separating a mixture of pigments.
To obtain the colors used, two solvents are mixed and the sample ink is dissolved in the solvents then spotted on a thin layer and put into a TLC chamber then the chromatogram is allowed to develop.
The various components of the pigment will appear on the chromatogram and can be identified using spectrophotometry. The Rf values of each component can also be used to identify it.'
Learn more about chromatography: brainly.com/question/26491567
Answer: longhand notation
Explanation: I just did it on Edg