DATA HANDLING

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DATA HANDLING by Mind Map: DATA HANDLING

1. Chemical concentrations

1.1. molarity (M)

1.2. parts per millions (ppm)

1.3. parts per billions (ppb)

1.4. normality (N)

2. Percent concentrations

2.1. weight percent (wt%)

2.2. volume percent (vol%)

2.3. weight / volume percent (w/v%)

3. Steps in Chemical Analysis

3.1. 1) define the problem

3.2. 2) select a method

3.3. 3) sampling

3.4. 4) prepare sample for analysis

3.5. 5) perform any necessary chemical separation

3.6. 6) perform the measurements

3.7. 7) calculate the results and report

4. Statistical Analysis

4.1. Mean

4.2. Standard Deviation

4.3. Q-test

4.4. F-test

4.5. Student's t test

4.5.1. 1) when accepted value is known

4.5.2. 2) to compare two sample mean

4.5.3. 3) paired t test