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A solution of Na2CO3 is prepared by dissolving 0.997 g of the solid in approximately 30 mL of water. How many moles of Na2CO3 does this solution contain? Suppose the Na2CO3 solution described previously is added to a solution that contains excess CaCl2? What is the maximum number of moles of solid CaCO3 that can form in the resulting precipitation reaction? What is the maximum mass (in grams) of CaCO3 that could form in the precipitation reaction described previously?
Problem- Write formulas for the following compounds; sulfuric acid, thiosulfuric acid, sulfurous acid, periodic acid, iodic acid, hypochlorous acid, nitrous acid, nitric acid, phosphorous acid, phosphoric acid, carbonic acid.
Calculate the concentration of OH- and the pH value of an aqueous solution in which [H3O+] is 0.014M at 25°C. Is this solution acidic, basic or neutral?
Calculate the work done when 25.0 g of tin dissolves in excess acid at 1.00 atm and 29°C. Assume ideal gas behavior.
When 67.7g of calcium and 30.5g of nitrogen undergo a reaction that has a 93.0% yield, what mass of calcium nitride forms
The reaction can be catalyzed by a strong acid. A food chemist determines that an increase in temperature from 50 to 60 degrees Celcius increases the initial rate of this reaction by a factor of 2.12
calculate the molar heat of combustion of liquid methanol . a. -8.17 x 105 kJ/mol b. -817 kJ/mol c. 1.88 kJ/mol d. -0.8 kJ/mol e. none of the above
Question- a) What modern technique is the most common form of Inorganic Mass Spectroscopy in use today? b) Give the complete name and abbreviation for three (3) hyplienated technique, GC and detector combination.
Calculate the number of mmoles of primary standard grade Na2CO3. b. How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.
Isopropyl Iodide can be used in acetoacetic esther synthesis in the presence of NaOET to form 4-methyl-2-pentanone. How does this occur? P.S. I tried to use the chem software to diagram this reaction but failed miserably :P
Remember that M1V1=M2V2. What volume of distilled water do you need to add to dilute 10 mL of a 100 mM Tris- HCl buffer solution to a concentration of 10 mM
Propose a synthesis for the following two molecules starting from methylcyclohexane. Methylcyclohexanol and Bromomethylcyclohexane. Show all synthetic intermediates and reagents.
When you calculate the molarity and molality of the EDTA solution are the values very similar or not? Explain if this is what you might expect for a dilute aqueous solution with a density very close to 1.0 g/mL.
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