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Calculate the amount of solute in g needed to prepare 431.5 g of 8.85 %(m/m) LiNO3 solution.
During an experiment, a student adds .339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution. Assuming the solution\'s final volume is 100.0 mL,
The atomic mass of chlorine is listened as 35.454 amu on the periodic table. It has two naturally occuring isotopes CL 35 and Cl 37. What are the approximate percentages.
Suppose that 155g of ethanol at 21 degrees Celcius is mixed with 240g of ethanol at 88 degrees Celcius at constant atmospheric pressure in a thermally insulated vessel. What is the change in S of the system for the process? The specific heat capac..
Empirical and Molecular Formulae, The analysis of an organic compound produces the following elemental analysis: % C is 59.999% and % H is 4.476%.
The Henry's Law constant (Kh) for O2 in water at 20 degrees C is 1.28e^-3 mol/L*atm. How many grams of O2 will dissolve in 2.00L of H2O that is in contact with pure O2 at 1.00 atm?
Semi-Empirical Expression for a Dilute Real Solution, Starting with the definition of osmotic pressure
if a raindrop weighs 65 mg on average and 5.1x10^5 raindrops fall on a lawn every minute what mass in kg of rain falls in 1.5 hours
Given the values of ΔH ° rxn , ΔS ° rxn , and T below, determine ΔS univ. ΔH ° rxn = 80kJ , ΔS rxn = 143J/K , T= 299K Express your answer using two significant figures.
How many moes of diethylamine((C2H5)2NH, Kb-1.3E-3) must be added to 447ml of distilled water to produce a solution with a pH of 12.787? Can someone explain this step by step?
Assume complete combustion occurs. Determine the dew point temperature of the flue gas.
Write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients.
Draw the product formed when Reaction of [(1R)-1-methoxypropyl]benzene undergoes substitution with the hydroxide ion
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