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A waste having an ultimate CBOD of 1,000 mg/L is discharged to a river at a rate of 2 m3/s. The river has an ultimate CBOD of 10 mg/L as well as is flowing at a rate of 8 m3/s. Presumptuous a reaction-rate coefficient of 0.1/day, compute the ultimate and 5-day CBOD of the waste at the point of discharge (0 km) and 20 km downstream. The river is sinuous at a velocity of 10 km/day.
Suppose that the microwave radiation has a wavelength of 11.2cm . How many photons are required to heat 295mL of coffee from 25.0C to 62.0C
Order the following compounds according to their expected lattice energies: AlBr^3, MgBr^2, LiBr, CaO
What is the enthalpy change for the neutralization reaction of 1 mol of CsOH in kJ?
Determine the mass in grams of Ni in the original sample? Determine the weight percent of Ni in the sample?
How would you prepare a suspension for analysis of trace compounds, getting a repersentative sample
what is the molar mass of a gas which has a density of 1.16g.l-1. at stp ? if this gas is a hydrocarbon with 92.2carbon
A 0.050 M CaCl2 solution is adjusted to a pH = 8. Will Ca(OH)2(s) precipitate.
calculate the minimum volume of 1.10m cuso4 solution that is required to ensure complete reaction of 1.04g of fe. since
can you clarify these followinga. delta g and delta go1. what would happen to delta g and delta go and also
If a 220 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.41.0 , what is the average thickness of the sheet in meters?
6.00 mL of this solution was mixed with 77.00 mL of a solution of potassium nitrate and 68.70 mL of a solution of ammonium chloride. What is the molarity of Nacl in the final solution?
What volume of concentrated HCl is necessary to completely neutralize the 10 mL of 1.5 M NaOH used?
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