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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?
The pH after adding 5.0mL, 10.0mL, 15.0mL, 20.0mL (keeps increasing by 5)... 50mL of KOH aqueous solution to the 50.0 mL sample of the HF solution.
let a -47 b 10 and c56a. find the vertices of the image of deltaabc under the translation t-25b. to what complex number
The three isomers 0-,m-, and p-xylenes are are very difficult to distinguish via proton NMR. However they are instantaneously distinguishable via carbon NMR how
When 0.069 mol of aluminum sulfate are dissolved in enough water to make 485 milliliters of solution, what is the molar concentration of aluminum ions?
Select the Lewis structure for the ion formed by the acid when it ionizes.
Assume that in the synthesis of isoamyl acetate a student began with 6.106 grams of acetic acid as well as 3.84 grams of isoamyl alcohol. If the mass of isoamyl acetate obtained were 4.97 explain what the percent yield was
At beginning of the work up stage of the lab procedure, the two phase reaction mixture probably contains the following:
What pricing method would you advise Ricky's company to use?
A sealed balloon is filled with 2.20 L of helium at 23°C and 1.00 atm. The balloon rises to a point in the atmosphere where the pressure is 210. torr and the temperature is -32°C. What is the change in volume of the balloon as it ascends from 1.00..
vAt a particular temperature, K = 2.0 10-6 mol/L for the following reaction. 2 CO2(g) 2 CO(g) + O2(g) If 1.7 mol CO2 is initially placed into a 3.7-L vessel, calculate the equilibrium concentrations of all species. [CO2] [CO] [O2]
Add charges, single electron dots, and/or pairs of dots as appropriate to show the Lewis symbols for the most stable ion of each element.
followed by acidification, gives compound Z with molecular formula C4H6O4, CH3CO2H and CO2. Both X and Y are optically active, while Z is optically inactive. Propose structures for X, Y and Z that are consistent with these data.
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