Question

Write detailed step by step procedures for preparing the dtandard solutions and obtaining the calibration curve data

Answer 1

To prepare standard solutions and obtain calibration curve data in chemistry, follow these steps: gather materials, put 10 ml of water into a test tube, measure the temperature of the water, repeat for different volumes or concentrations, plot a graph, determine concentration or volume from the graph.

Step-by-step explanation:

To prepare standard solutions and obtain calibration curve data:

1. Gather the necessary materials, such as a balance, test tubes, and a temperature probe.
2. Put 10 ml (10 grams) of water into a test tube.
3. Measure the temperature of the water and record it on the Data Sheet.
4. Repeat steps 2 and 3 for different volumes or concentrations of the substance you are working with.
5. Plot a graph of the recorded temperatures and concentrations or volumes.
6. From the graph, determine the concentration or volume of the substance corresponding to a given temperature.
7. This concentration or volume is the standard solution.

Throughout this process, precision in measurement and consistency in experimental conditions are vital. The resulting calibration curve will serve as a reference to deduce the concentrations of unknown samples.