Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. A laboratory column is filled with soil and then saturated with water. The data are:
The head loss through the soil column is 45 cm when pumped at Q = 3.0 cm3/min. Calculate:
Calculate:
a. Pore volume (mL) (volume of voids) b. K c. v (specific discharge, Darcy velocity) d. vs (flow velocity, transport velocity) e. time for one pore volume f. What would the head loss be if Q = 30.0 ml/min? g. What would Q be if the hydraulic gradient were 6.0 cm/cm?
2. A pumping well fully penetrates a confined aquifer 60 feet thick. The well is pumped at a constant rate of 40 gpm. At steady state, drawdown is observed as 7 feet in a well a half mile away and 25 feet at a well 100 yards away. Determine the hydraulic conductivity and transmissivity of the aquifer (ft2/day and gpm/ft).
3. The ground water table elevation (h) is measured at two observation wells within the cone of depression of (at distance r from) a drinking water well which has been pumped almost continuously for several years. From the data below, calculate the hydraulic conductivity of the aquifer.
Pumping rate = 300 ft3/min h1 = 120 ft r1 = 300 ft h2 = 90 ft r2 = 240 ft
Cobalt-60, which undergoes beta decay, has a half life of 5.26 years.
Lead (2) nitrate reacts with potassium iodide to produce lead (2) iodide and potassium nitrate. if 1.23mg of lead nitrate are consumed, what is the mass of the potassium nitrate produced?
What mass of liquid water at room temperature (25 C) can be raised to its boiling point with the addition of 31.0 kJ of energy
A gas mixture containing oxygen, nitrogen and neon exerts a total pressure of 1.20 atm. If helium added to the mixture increases the pressure to 1.50 atm, what is the partial pressure (atm) of helium
What is the hydroxide-ion concentration in a solution formed by combining 200. mL of 0.15 M HCl with 300. mL of 0.091 M NaOH at 25ºC?HCl(aq) + NaOH(aq) ? NaCl(aq) + H2O(l)
A wine-dispensing system uses argon canisters to pressurize and preserve wine in the bottle. An argon canister for the system has a volume of 29.1mL and contains 36.6g of argon.Assuming ideal gas behavior
Calculate the expected pH values of the buffer systems from the experiments (a, b, c, d) using the Henderson-Hasselbalch equation (pH= pKa + log [A-] ). Use for pKa values: carbonic acid= 6.37 and acetic acid= 4.75.
the ionization of water must be considered in order to calculate the pH of this acidic solution.)
Find the gram formula mass of each compound.
A sample of oxygen gas is collected over water at 25 degrees C and a total pressure of 637 torr. The volume of the gas collected is 500.0 mL. What mass of oxygen is collected? The vapor pressure of water at 25 degress C is 23.8 torr.
Which of the following would be expected to have a bent (angular) shape?
Compute the molecular formula of CH 3 COOH the percent composition of acetic acid is 39.99% C and 6.73% H. The remainder of the compound is oxygen.(The molar mass of acetic acid is 60.06 g/mol.)
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd