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МатематикаВопрос:
Make a conclusion: according to the point method - the studied water has a score of ____.
Ответ:
Вывод: по балльной методике – исследованная вода имеет балл ______.
Похожие
- Table. Determination of the characteristics and intensity of water odor. No. of sample Odor character Odor intensity Notes
- Experiment 2. Determination of water transparency. 2.1 Take a transparent test tube, pour the studied water into it. 2.2 Place a font at a distance of 4 cm from its bottom under the test tube. 2.3 Pour out the water until this font is no longer visible from above through the layer of water. 2.4 Measure the height of the remaining water column with a ruler and express the degree of transparency in cm. 2.5 Conclusion: water transparency – cm. What is the transparency of the water? (use the table "Water Transparency") Transparency Unit of measurement, cm Transparent More than 30 Slightly cloudy From 25 to 30 Moderately cloudy From 20 to 25 Cloudy From 10 to 20 Very cloudy Less than 10
- Experiment 3. Determination of color. 3.1 Qualitative assessment of color is carried out by evaluating the color of the water directly or in comparison with distilled water. To do this, pour the studied sample into a test tube up to the 50 ml mark. 3.2 In daylight, examine it from above and from the side against a white background to determine the color. If there is no color, the water is considered colorless. Make a conclusion: the color of the water is - __.
