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Need to dissolve CaCl2 in water to make a mixture that is 28.0% calcium chloride by mass. If the total mass of the mixture is 884.7 g, what masses of CaCl2 and water should be used?
50.0 ml of 2.00M H2SO4 react with 75.O ml of 2.00M NaOH.Identify the limiting and excess reactants.
Consider the formation of n-butyl alcohol and NaBr in the presence of H2SO4. If you start with 1.31g of n-butyl alcohol and end up with 1.79g of n-butyl bromide
CH4 and H20 have about the same molecular weights. Which has the higher vapor pressure at room temperature? Explain.
Specificy which ion you would add to the unkown and how the results would identify which compound is in the unknown.
How many moles of steam are produced at 2.00 atm and 202.0 by the complete combustion of 12.50 L of methane gas?
If the density of the solution is 1.1094 g/mL, what is the molarity of the sulfuric acid?
How many total atoms are there in each unit cell? (b) What is the volume of one unit cell in Å3? (c) Assuming that the atoms are spheres and the radius of each sphere is 1.64 Å
Determine the molecular formula of a compound which has a empirical formula of CH3 and a molar mass of 60.0 g/mol.
A student wants to conduct an experiment requiring 500 ml of a 3 M sulfuric acid 18 M concentrated sulfuric acid is available. How could the student prepare the desired solution
The enthalpy change for converting 1.00 mol of ice at -50.0 degrees C to water at 70.0 degrees C is ____ Kj. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-k and 1.84 J/g-k, respectively.
What is the density of a rock that weighs 10 grams and displaces water in a graduated cylinder from 100 to 120 mL.
A compound of molecular weight 280 g/mol a concentration of 15.0 micrograms per ml absorbs 65 percent of radiation at a certain wavelength in a 2 cm cell.
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