Plot the data points on the graph below and use the corresponding dot colors: 1st data point - blue, 2nd data point - yellow, 3r
d data point - green, 4th data point - red.
x values- 0.5, 1, 2, 3 y values- 4, 8, 16, 24 (Direct relationship, k=8)
x values- 0.5, 1, 2, 3 y values- 4, 8, 16, 24 (Direct relationship, k=8)
2 answers:
Answer:
See figure attached
Explanation:
To plot data points on a graph you have to use the coordinates of each point. For example, the first point has coordinates (0.5, 4) that is, x-value: 0.5 and y-value: 4, after you located this point in the graph, you draw a (blue) dot there. The process is the same for all the other points.
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Answer: The freezing point and boiling point of the solution are and
respectively.
Explanation:
Depression in freezing point:
where,
= freezing point of solution = ?
= freezing point of water =
= freezing point constant of water =
i = vant hoff factor = 1 ( for non electrolytes)
m = molality
= mass of solute (ethylene glycol) = 21.4 g
= mass of solvent (water) =
= molar mass of solute (ethylene glycol) = 62g/mol
Now put all the given values in the above formula, we get:
Therefore,the freezing point of the solution is
Elevation in boiling point :
where,
= boiling point of solution = ?
= boiling point of water =
= boiling point constant of water =
i = vant hoff factor = 1 ( for non electrolytes)
m = molality
= mass of solute (ethylene glycol) = 21.4 g
= mass of solvent (water) =
= molar mass of solute (ethylene glycol) = 62g/mol
Now put all the given values in the above formula, we get:
Thus the boiling point of the solution is