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A tanker truck carrying 5.0 103 kg of concentrated sulfuric acid solution tips over and spills its load. If the sulfuric acid is 94.0% H2SO4 by mass and has a density of 1.84 g/mL, how many kilograms of sodium carbonate must be added to neutralize the acid?
What considerations must be made before making a referral for additional assessment in determing whether a student has a communication disorder or not?
Explain why the addition of the HCl or NaOH improves the ability of the azo dyes
what is the boiling point of a solution containing 2.33 grams of C8H10N4O2 , dissolved in 15 grams of benzene?
Assuming that the specific heat of water is 4.18 J/(g · °C), and that the heat absorption by the calorimeter is negligible, estimate the enthalpy of combustion per mole of anthracene.
If the flask has a volume of 0.150 L, what is the minimum mass of PH3BCl3(s) that must be added to the flask in order to achieve equilibrium?
What is the entropy change for a particle in this system if the final number of microstates is 0.819 times that of the initial number of microstates?
Identify whether you would treat them as a fixed or variable cost explain the reasoning for your classification based on the historical information and the planning you did for new marketing programs for the upcoming year,
The core challenge in generalizing validity across organizational studies is that the various correlations may reflect significant differences of the jobs that they each measured (in the respective organizations).
Calculate the molarity of a solution of glycerol made by dissolving 58.000 mL glycerol at 15 degrees Celcius in enough water to make 390.00 mL of solution.
Write the half-reaction that occurs at a hydrogen electrode in acidic aqueous solution when it serves as the anode of a voltaic cell?
The half-life of a certain radioactive element is 1250 years. What percent of the atoms remain after 7500 years?
The complete combustion of acetylene, C2H2(g), produces 1300. kJ of energy per mole of acetylene consumed. How many grams of acetylene must be burned
determine the total pressure in the flask AND the height difference between the two arms of the manometer.
The decomposition of N2O5 in CCL4 is a first order reaction. If 2.56 mg of N2O5 is present initially and 2.50 mg is present after 4.26 minutes at 55 degrees Celsius what is the value of the rate constant K?
Calculate the mass of water formed by the complete reaction of 935 g of propane (C3H8) with excess oxygen. (Write a balanced equation)
The boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2°C. What is the molar mass of the solute?
You are checking the accuracy of a volumetric flask marked 10.00 mL. You measure the volume of water contained in the flask by measuring the mass of the empty flask
How much heat is required to melt 15 grams of ice at 0C? How much heat is released when 100 grams of steam condenses at 100C? If a system of ice and water has a mass of 12 grams
What mass of NaHCO3 must be added to 1.00 L of 0.10 M Na2CO3 to make a buffer solution whose pH=9.85? pKa2(H2CO3)=10.33
when 3.02g NH4Cl solid was dissolved in 20.05 ml water the temperature of the water dropped from 19.8 degrees celcius to 9.1 degrees celcius
The temperature of 1.5 kg of ethanol is 37°C. What will the final temperature be if 80,000 J of energy as heat is added to the ethanol.
A compound has the empirical formula CH2O. When 0.0866g is dissolved in 1.000g of ether, the solution's boiling point is 36.5 degrees C. Determine the molecular formula of this substance.
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