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Two aqueous hydrogen bromide solutions containing 12.0 wt% HBr (SG = 1.0867) and 30.0 wt% HBr (SG = 1.2552) are mixed to form a 3.54 molar HBr solution (SG = 1.1935).
What feed rate of the 30.0 wt% HBr solution would be required to produce 1050 kg/hr of product?
What is the feed ratio of liters of 12.0 wt% HBr solution to liters of 30.0 wt% HBr solution?
A physiological saline solution is 0.92% sodium chloride (NaCl) by mass and has a density of 1.005 g/mL. What is the osmotic pressure of such a solution at body temperature of 37 degree C
At 29 C the average rate is 3.3 flashes every 10 seconds;at 23 C the average rate falls to 2.7 flashes every 10 seconds. Calculate the activation energy for flashing process.
The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 1.000-mg sample remains after 3.50 years?
If your front lawn is 24.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1250 new snow flakes every minute, how much snow (in kilograms) accumulates on your lawn per hour
Express the concentration of a .0560 M aqueous solution of flouride, F-, in mass percentage and in parts per million. Assume the density of the solution is 1.00g/mL.
If more than one alkene is possible, predict which one will be formed in the largest amount: a. 2-methyl-2-butanol b. 1-methylcyclohexanol
Explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M Na3PO4, 0.1 M NiF2, 0.2 M Rb2CO3, 0.01 M Sr(OH)2, , 0.03 M ScBr3.
Why does finding a straight line relationship help you to understand the nature of the relationship between transmittance and concentration?
Calculate the molarity of a solution made by dissolving 0.650 grams of Na2SO4 in enough water to form exactly 880 mL of solution.
What is the value of the equilibrium constant at 500 K for a chemical equilibrium that as a delta H value of 250 kj/mol and a delts S value of 48 J/mol K?
How much heat (in kJ ) is required to warm 13.0 of ice, initially at -13.0, to steam at 114.0? The heat capacity of ice is 2.09 and that of steam is 2.01
under certain conditions, the combustion of charcoal (C) in the presence of o2 forms carbon monoxide (CO) according to the given balance equation.
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