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How many grams of a stock solution that is 85.5 percent H2SO4 by mass would be needed to make 150 grams of a 45.0 percent by mass solution? Show all of the work needed to solve this problem.
In the Ritalin Synthesis, why is p-PhLi (phenyl lithium) used instead of cuprate? What does cuprate do? And why doesn't the alkyllithium add twice
A particular compound contains, by mass, 41.4g carbon, 3.47g hydrogen, and 55.1g oxygen a 0.100 mol sample of this compound weights 11.60 g.
Use an enthalpy diagram to calculate the lattice energy of CaCl2 from the following information. Energy needed to vaporize one mole of Ca(s) is 192 kJ.
A 1.30 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mass percent, molality, mole fraction, and normality of the citric acid. Citric acid has three acidic protons.
A mixture of He and Ne at a total pressure of 0.95 atm is found to contain 0.32 mol of He and 0.56 mol of Ne. The partial pressure of Ne is __________ atm.
What volume of 0.22 M FeCl3 (mL) should be diluted to 440 mL to make a solution containing .017 M Cl-
The elemental mass percent composition of malonic acid is 34.63% , 3.87% , and 61.50% . Determine the empirical formula of malonic acid. Express your answer as a chemical formula.
A reaction has a second-order rate law with kr=1.44 dm3 mol-1 s-1. Calculate the time required for the concentration of A to change from 0.460 mol dm-3 to 0.046 mol dm-3.
Explain how many grams of sodium hydroxide should be added to the solution to produce a concentration as close as possible the desired 0.1000 M? Presume that the sodium hydroxide is carbonate-free
determine the blood volume of a rabbit from the following data. a 2.8 ml volume of radioactive plasma with a activity
A 2.30 L sample of O2(g) was collected over a liquid at a total pressure of 785 torr and 25°C. When the O2(g) was dried (vapor of that liquid removed), the gas had a volume of 1.86 L at 25°C and 785 torr.
An oxalic acid solution contains the subsequent species in varying concentrations- C2H2O4,C2HO-4,C2O2-4, and H+. Depict Lewis structures of C2HO-4, and C2O2-4. Which of the above four species can act merely as acids which can act only as bases, ad..
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