Calculate the pH and alkalinity (in mol/L) of a water that contains 120.0 mg/L of bicarbonate ion and 15.00 mg/L of carbonate ion.
Q: Practice Problem 4.2 A rectangular beam has a width of 260 mm and an overall depth of 470 mm. Concre...
A:
Q: A 750mm dia. pipe 1162m long carrying 2.4 cubic meter per second of water branches into two pipes, 4...
A:
Q: An elevator is moving upward at a constant speed of 4 m/s. A man standing 10 m above the top of the ...
A:
Q: 2. A tension member must be designed for a service dead load of 18 kips and a service live load of 2...
A: Given- •Service Dead Load (D)= 18 kips • Service Live Load(L) = 2 kips To Calculate-- a) -...
Q: The ratio of reactions Ra and Rgof the simply supported beam, as shown in figure below, will be 5t 3...
A:
Q: YOU ARE PLACING RIP RAP FOR EROSION CONTROL. THE SUPERINTENDENT ORDERED 2000 TỔN FOR THE OB.
A: Superintendent order rip rap = 2000 TON Slope length (width) = 12 feet Total length (L) = 700 feet T...
Q: A canal was designed to supply the irrigation needs of 1200 hectares of land growing rice of 140 day...
A:
Q: An employee who works during 8-hour shift in a station is exposed to a noise level of 80 + T + U dB(...
A: Given, A weighted sound level (L) = 80+9+2 = 91 dB(A)
Q: tank at a rate of 120 lit/sec to irrigate an area of 2.5 hectares. The duration of irrigation is 8 h...
A: To find the efficiency-
Q: Question 1 : Answer question A and B A- If the pressure potential is zero and it is 20-20 cm, fi...
A: solution: For part A: h1 = 20; h2 = 20cm Pressure Potential is Zero pg=po+hpg=0m=45kgh=mAp= 45900×10...
Q: For a given soil, derive the following relation by drawing the three-phase diagram: Y: = Gs yw (1 - ...
A:
Q: Convert the following and round off to nearest hundredth if necessary. 10ft³ to cm³
A:
Q: A small catchment of area 200 ha received a rainfall of 10 cm in 90 minutes due to a storm. At the o...
A: Loss effect = Inflow - Outflow
Q: A beam of uniform section of span 1 is simply supported at its ends. It is carring a point load of W...
A:
Q: Homework2: Draw the network diagram by using AON technique for the following activities, define the ...
A: Given:- The time duration of the following activities are given:- Activity Preceding Activity Tim...
Q: The length of top chord from A to Dis 24 m which is equally divided by 4 spons Determine the value o...
A:
Q: The data shown below were obtained on a highway. Use regression analysis to fit these data to the Gr...
A:
Q: construction
A:
Q: e initial rate of infiltration of a watershed is estimated as /hr, the final capacity is 0.2 in/hr, ...
A: K=-0.4 per hr Time period=6hr
Q: In calculating the water balance of a reservoir which parameter must be included? O Discharge O Evap...
A:
Q: P-0SCApu The population of Pekan Tong Yee in the year 2010 is 137 558. If the population growth is 0...
A:
Q: What will be the Rankine crippling load (in kN) for a hollow cylindrical steel column with radius of...
A: Given data,Radius of gyration=12.6 mmArea of column=88.75π mm2Length ,L=2.3 mYield stree=335MPaConst...
Q: The bending moment diagram for a beam is given below: 400 kNm 200 kNm ix 0.5m 0.5m 2 m 2 m BMD Which...
A:
Q: A bicyclist is moving 6m/s when he is passed by another bicyclist. He instantly begins to accelerate...
A:
Q: 3 m 2 m P = 50 kN Area (mm2) length E 70 Gpa 200 Gpa Aluminum 500 4 m Steel 300 3 m Aluminum Steel
A:
Q: Area Moment Method For the given cantilever beam, (a) Compute the rotation at the free end A, in rad...
A:
Q: these data to the Greenshields & Greenberg e capacity AND R-SQUARE.
A: consider plot for the solution
Q: Demonstrate the drag force on a sphere of diameter D in Stokes flow by dimensional analysis by Bucki...
A: To find: - Demonstrate the drag force on a sphere of diameter D in Stokes flow by dimensional analys...
Q: Determine the reactions at the supports A, B, and C, then draw the shear and moment diagrams. El is ...
A:
Q: D. E 225 kN- 6 m - 6 m- 6 m Using Portal Method, determine the Moment at BE in kN.
A:
Q: a) What are forced vibrations? Examine the effect of a periodic force on the motion of a damped osci...
A: "Since you have posted a question with multiple sub-parts. We will solve the first part 2a for you. ...
Q: M N 7.5 k 16 ft 15 k - J K 16 ft 15 k F G H 16 ft E A D E30 ft +20 ft --30 ft
A:
Q: each persons under the Construction (Design and Management) Regulations: (a) The client (b) The prin...
A: THESE 3 ARE VERY IMPORTANT ROLES TO CARRY IN CONSTRUCTION WORK
Q: Question 6 E F D 225 kN 6 m A B 6 m 6 m Using Cantilever Method, determine the Shear force at EF in ...
A: Given data in question Frame Load Dimension To find out Shear force in EF
Q: Empirical models include description of hydrological processes based on cause-effect relationships t...
A: Ans: False Empirical model are observation oriented models which take information from the existing ...
Q: The following are basic assumptions about the rational method except: O Rational coefficients are in...
A:
Q: The table presents the raingauge observation during a storm. Table 1. Cumulative rainfall data Time ...
A:
Q: 4
A: Energy balance method deals with the supply of energy in form of latent heat of vaporization. The ab...
Q: rXS 20 rxss COD: 35 mg/L, BOD: 7 mg/L, AN: 2.5 mg/L, SS: 475 mg/L, pH: 5, DO: 5 mg/L SICOD-991-133X ...
A: AN=2.5mg/L DO=5mg/L
Q: NTU Dose (L) Directly determine the optimum alum dosage (in mg/L) by examining the following jar tes...
A: dosage(g/lt) NTU 0.01 24 0.02 13 0.03 9 0.04 3 0.05 2 0.06 3
Q: What are the common minerals used in the manufacture of cement? Give a brief description of each min...
A: Introduction: Concrete is made up of of Portland cement. When portland cement is mixed with water to...
Q: For a drainage basin of 600 km2, isohyetals drawn For a storm gave the following data:
A: According to given data drainage basin of area 600 km2, Isohyetals drawn for a storm gave the follo...
Q: For the lap joint shown, determine the shearing stress of the rivets and the bearing stress of the p...
A: Given: The width of the plate is 110 mm. The thickness of the plate is 10 mm. The diameter of the ri...
Q: Problem 2: Using any method, find the ff. when E and I 100 GPa 100x10^6 mm^4 Location and magnitude ...
A:
Q: A cantilever 2.5 m long is loaded with a uniformly distributed load of 10 kN/m over a length of 1.5 ...
A:
Q: 16. Can the cross-section resist demands of My=97.2 kip-ft and P=648 kip? YES / NO (CIRCLE ONE) Expl...
A: Solution: Concrete column analysis: GIven: fc = 5500 psi; fy= 60 ksi no. of bars = 8 DIa. of bars ...
Q: The structural frame shown in Figure 1(c) is rigid jointed and fixed to its supports. The mass of th...
A: First we will find natural frequency and then damped natural frequency.
Q: PROBLEM 3 Observe the figure below. Determine the following: a. axial stress on the shank if the loa...
A:
Q: h6 mm t (s) for 10L t (s) for 10L t (s) for 1OL 284 351 h2 mm h3 mm h4 mm h5 mm VL/s i h1 mm 56.10 0...
A: Static pressure (h_stat)is the pressure of a fluid at rest. Dynamic pressure (h_dyn) is the pressure...
Q: The beam shown below is suspended from two steel rods as shown and is initially horizontal. The midp...
A: Given : Deflection of mid point B, δB = 15 mmE = 200 GPaσ = 275 MPaArea of steel rod AD, AAD = 400 m...
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- A water contains 100.0 mg/L CO2-3 and 75.0 mg/L HCO-3 at a pH of 10 (T =25C). Calculate the exact alkalinity. Approximate the alkalinity by ignoring the appropriate chemical species. Select one: a. 167 mg/L b. 233 mg/L c. 459 mg/L d. 385 mg/LProblem- A water contains 110 mg/L carbonate ion and 80 mg/L bicarbonate ion at a pH of 10. Calculate the alkalinity exactly at 25° C. Approximate the alkalinity by ignoring hydroxide and hydrogen ion. What is the percentage error in approximation?- Calculate the pH of a solution that has a pOH of 8.70.
- Situation 1-A 500 cubic-centimeter solid having a specific gravity of 2.05 is submerged in two-liquid interface tank. Part of the solid is in mercury (sg=13.6) and the other part in oil (sg = 0.81). 1.1 What part of the solid is in mercury? A. 8.2% B. 12.5% 1.2 What part of the solid is in oil? A. 87.5% B. 93.7% C. 9.7% D. 6.3% C. 90.3% D. 91.8% 1.3 If the liquid is all mercury, what part of the solid is in mercury? A. 23.36% C. 18.25% B. 15.07% D. 12.08%1. A sample of water having a pH of 7.2 has the following concentration of ions. Determine the water's total hardness. lon Concentration (mg/L) HCO, 110 so* 67.2 CI 11 lon Concentration (mg/L) Ca* 40 Mg* 10 Na' 11.8 K* 7.0What is the pH of a water that contains 200.00 mg/L of bicarbonate ion and 20 mg/L of carbonate ion? pH = ()
- An analysis of water from a surface source yields the following results: Ions Concentration (mg/l) Ca +2 Mg +2 HCO3 SO²- 60 18 91.5 96 The temporary hardness (as CaCO3) and permanent hardness (as CaCO3) present in the water areExample 4-7: Single-stage softening A water with the ionic characteristics shown in the bar diagram below is to be softened to the minimum calcium hardness by the lime-soda ash process. Magnesium removal is not deemed necessary. 1. Calculate the chemical requirements and solids produced in milliequivalents per liter. 2. Draw a bar diagram for the finished water. 3. For a flow of 25,000 m³/d, calculate the daily chemical requirement and the mass of solids produced. Assume that the lime used is 90 percent pure and the soda ash is 85 percent pure. mequiv/L mequiv/L co 1.0 Ca²+ нсо; 3.5 5.0 Mg²+ 6.0 so²- Na 8.0 8.0Determine the concentration of hydrogen ion and the hydroxide ion (in mg/L) of a solution that has a pH of 9.1
- If water has 130 mg/L of bicarbonate ion, 25.00 mg/L of carbonate ion and the pH is 9.3, Calculate "exact" alkalinity of the water. BIU ΣExample 4-7: Single-stage softening A water with the ionic characteristics shown in the bar diagram below is to be softened to the minimum calcium hardness by the lime-soda ash process. Magnesium removal is not deemed necessary. 1. Calculate the chemical requirements and solids produced in milliequivalents per liter. 2. Draw a bar diagram for the finished water. 3. For a flow of 25,000 m³/d, calculate the daily chemical requirement and the mass of solids produced. Assume that the lime used is 90 percent pure and the soda ash is 85 percent pure. mequiv/L mequiv/L co 1.0 Ca²+ HCO3 3.5 5.0 Mg²+ 6.0 so²- Na 8.0 8.0The alkalinity of a water sample at pH 7 is 300 mg/L as CaCO3. Calculate the molar concentration of bicarbonate (HCO3-). Note that because the pH is less than 8, you can assume that all of the alkalinity is in bicarbonate form. Your Answer: