_______ is usually measured in cubic meters per second. A. Discharge B. Bed load C. Flooding D. Suspension
2 answers:
Answer: Option (A) is the correct answer.
Explanation:
In hydrology, the volumetric flow of rate of water that is transported with the help of a given cross-sectional area is known as discharge.
The formula to calculate discharge is as follows.
Q = A u
where,
Q = discharge
A = cross-sectional area of protion of channel occupied by flow (in )
u = average flow velocity (in m/s or ft/s)
Thus, we can conclude that discharge is usually measured in cubic meters per second.
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Answer: -
Volume of NaOH = 461 mL = 461/1000 = 0.461 L
pH = 10.0
Using the relation pH + pOH = 14.00
pOH = 14.00 - 10.00= 4.00
Using the relation
[OH⁻] =
= M
Since NaOH is a monobasic acid,
[NaOH] = [OH⁻] = M
Amount of NaOH = [NaOH] x Volume of NaOH
= M x 0.461 L
= 4.61 x 10⁻⁵ mol
Molar mass of NaOH = 23 x 1 + 16 x 1 + 1 x1
= 40 g / mol
Mass of NaOH required = 4.61 x 10⁻⁵ mol x 40 g/ mol
= 1.84 x 10⁻³ g