Identify each of the following solutions as acidic, basic, or neutral.
Drag the appropriate items to their respective bins.
saliva, pH 6.8
blood, pH 7.45
pancreatic juice, pH 8.0
urine, pH 5.9
bile, pH 8.4
Acidic solutions:
- Urine, pH 5.9
Neutral solutions:
- Blood, pH 7.45
Basic solutions:
- Saliva, pH 6.8
- Pancreatic juice, pH 8.0
- Bile, pH 8.4
Acidic:
- Urine, pH 5.9
Neutral:
- Blood, pH 7.45
Basic:
- Saliva, pH 6.8
- Pancreatic juice, pH 8.0
- Bile, pH 8.4
To identify the acidity or basicity of each solution, we can refer to the pH values given. Here's how we can determine the nature of each solution based on their pH values:
1. Saliva, pH 6.8:
We compare the pH value of saliva (6.8) to the pH scale. The pH scale ranges from 0 to 14, where values below 7 are considered acidic, values above 7 are basic, and a pH of 7 is neutral. Since saliva has a pH of 6.8, it falls below 7 and is therefore acidic.
2. Blood, pH 7.45:
Again, we compare the pH value of blood (7.45) to the pH scale. Blood has a pH value very close to 7, which is considered neutral on the pH scale. Therefore, blood is classified as a neutral solution.
3. Pancreatic juice, pH 8.0:
Comparing the pH value of pancreatic juice (8.0) to the pH scale, we can see that it falls above 7. A pH above 7 indicates basicity. Thus, pancreatic juice is a basic solution.
4. Urine, pH 5.9:
By comparing the pH value of urine (5.9) to the pH scale, we observe that it falls below 7. As mentioned earlier, a pH below 7 indicates acidity. Therefore, urine is an acidic solution.
5. Bile, pH 8.4:
Finally, we compare the pH value of bile (8.4) to the pH scale. As it is higher than 7, bile is considered basic since basic solutions have a pH greater than 7.
By analyzing the pH values provided, we've identified the nature of each solution as follows:
- Saliva: Acidic (pH 6.8)
- Blood: Neutral (pH 7.45)
- Pancreatic Juice: Basic (pH 8.0)
- Urine: Acidic (pH 5.9)
- Bile: Basic (pH 8.4)