It used for designing homes and drafting products before production
Answer:
The following steps should be followed to create the calculated field:
1. Enter AccountTime: (The AccountTime must be enclosed in #). #12/31/2017#-OpenDate in the first empty field.
2. Right-click the field then click properties. This will allow you format the selected field.
3. Rght-click the query tab and click Save. This will allow you save the query
4. Lastly, Close the query.
Answer:
Explanation:
Given data:
Ammonia Nitrogen 30 mg/L
pH = 8.5
-log[H +] = 8.5
[H +] = 10^{-8.5}
Rate constant is given as
![K_a = \frac{[H^{+}] [NH_3]}{NH_4^{+}}](https://tex.z-dn.net/?f=K_a%20%3D%20%5Cfrac%7B%5BH%5E%7B%2B%7D%5D%20%5BNH_3%5D%7D%7BNH_4%5E%7B%2B%7D%7D)
...........1
Total ammonia as NItrogen is given as 30 mg/l
![\%NH_4^{+} = \frac{ [NH_4] \times 100}{[NH_4^{+}] + [NH_3]}](https://tex.z-dn.net/?f=%5C%25NH_4%5E%7B%2B%7D%20%3D%20%5Cfrac%7B%20%5BNH_4%5D%20%5Ctimes%20100%7D%7B%5BNH_4%5E%7B%2B%7D%5D%20%2B%20%5BNH_3%5D%7D)
= 
.....2
from equation 1 we have
![\frac{NH_3^+}{NH_4^+} =\frac{K_a}{[H^+]} = \frac{5.6\times 10^{-10}}](https://tex.z-dn.net/?f=%5Cfrac%7BNH_3%5E%2B%7D%7BNH_4%5E%2B%7D%20%3D%5Cfrac%7BK_a%7D%7B%5BH%5E%2B%5D%7D%20%3D%20%5Cfrac%7B5.6%5Ctimes%2010%5E%7B-10%7D%7D)
{10^{8.5}}
plug this value in equation 2 we get
Total ammonia as N = 30 mg/lt
Following are the two sources of data:
- Internal Source. When data are collected from reports and records of the organisation itself, it is known as the internal source. ...
- External Source. When data are collected from outside the organisation, it is known as the external source.
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