Which graph models the pH of this solution?
1 answer:
The graph that models the pH of this solution is graph A.
<h3>What is a graph?</h3>It should be noted that a graph is a diagram such as a series of one or more points, lines, line segments, curves, or areas which represents the variation of a variable in comparison with that of one or more other variables.
The pH is a measure of how acidic or basic water is. It should be noted that the range goes from 0 - 14, with 7 being neutral. The pHs of less than 7 indicate acidity, while a pH of greater than 7 indicates a base. The pH is really a measure of the relative amount of free hydrogen and hydroxyl ions that are in the water.
In this case, x represents the concentration of the hydrogen ions. The first graph illustrates this.
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<u>Complete question:</u>
The ph of a particular solution is given by pH=-log(x-2) where x represents the concentration of the hydrogen ions in the solution in moles per liter. Which graph models the ph of this solution?
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Answer:
Minimum value = 1
Maximum value = 10
First Quartile or 25th percentile = 2.5
Third Quartile or 75th percentile = 5
Median = 4
Inter Quartile Range (IQR) = 2.5
Range = 9
Number of variables = 25
Outliers = 10
Step-by-step explanation:
Note that a box and whiskers plot shows 5 major information about the distribution of data. It shows:
- The maximum variable
Simply the maximum value of the distribution.
This is usually read from the whiskers, the tail end on the whiskers at the top of the plot. But this distribution has an outlier (represented by the singular dot, which can now serve as the maximum value. Maximum value = 10
- The minimum variable
Simply the minimum value of the distribution.
This is also easily read from the whiskers, the very beginning of the whiskers at the bottom. For this distribution, the minimum value is 1.
- The first Quartile or the 25th percentile
This is the beginning of the boxplot. For this distribution, it is 2.5.
- The third quartile or the 75th percentile
This is the end of the boxplot. For this distribution, it is 5.
- The Median
This is the number at the middle of the distribution when all the variables are arranged in ascending or descending order.
This is represented by the point that coincides with the line drawn on the boxplot. For this distribution, the Median is 4.
The other variables describing the dataset that can be obtained from the boxplot include;
1) The Interquartile Range (IQR)
The IQR is a measure of the spread of the distribution and it is given mathematically as the difference between the third and first quartile.
IQR = (Third quartile or 75th percentile) - (First quartile or 25th percentile)
IQR = 5 - 2.5 = 2.5
2) The range.
The range is given as the difference between the maximum and minimum values of a distribution.
Range = (Maximum value) - (Minimum Value) = 10 - 1 = 9.
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