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To prepare a solution of 50% sulfuric acid, a dilute waste acid containing 28% h2SO4 is fortified with a purchased acid containing 96% H2SO4. How many kilograms of the purchased acid must be bought for each 100 kg of dilute acid?
A gas mixture is made by combining 8.1 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 19.20 L. What is the molar mass of the unknown gas?
A solution is made by combining 15.0mL of 18.5M acetic acid with 5.60g of sodium acetate and diluting to a total volume of 1.50 L. Calculate the pH of the solution.
The Greenhouse Effect - how the sun's visible light is converted into trapped infra red light and heat, causing the planet to warm up.
The total pressure of the container after the water condenses (5C) is .857 atm. What are the partial pressures of the 4 gases at 5C. e)What was the temperature of the container in Kelvin before it was cooled to 5C?
After 63.0 min, 24.0% of a compound has decomposed. What is the half-life of this reaction assuming first-order kinetics
a weather balloon has a volume of 750 l when filled with helium at 8 oc at a pressure of 380 torr. what is the new
Calculate the work in kilojoules done during a synthesis of ammonia in which the volume contracts from 8.8L to 4.3L at a constant external pressure of 46 atm
Two mols of a Van der Waals fluid are maintained at a temperature T=0.95Tc , in a volume of 200cm3 . Find the mole number and volume of each
Each atom in HF has a fractional charge of 0.416. What is the dipole moment of HF? 2. Which of the following molecules has a dipole moment? 3. Of the ions below, which ion has the smallest atomic radius?
What is Nitroglycerin's molar mass if the addition of 0.454 g of nitroglycerin to 100.0 g of benzene changes the solution's vapor pressure to 94.85 mm Hg?
Explain using the Michaelis-Menten model the reasonsing behind the net effect of an irreversible inhibitor on the enzyme's substrate affinity and rate of product formation?
1. what is the molality of a solution that contains 3.0g urea molecular weight 60 amu in 100g of benzene?2. calculate
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