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A 25.5 ml sample of a diprotic acid is titrated with 0.245 M KOH .
If 66.5 ml of base is required to reach the second equivalence point, what is the concentration of the acid?
a solution contains 4.00g NaOH, 5.61g KOH, and 1.03g RbOH in 90.0g of H2O. The solution has density of 1.08g/mL. What is the molality of OH?
How many grams of acetylene are produced by adding water to 5.0 grams CaC2
Draw the Lewis Structure for the ClF2+ion and AlF4-. For each ion, what are its electron-pair and molecular geometries? What orbitals on Cl and F overlap to form bonds between these elements
If the barometric pressure is 784 torr and the experiment is carried out at 25 oC, what is the pressure of the gas collected?
Acetone, the solvent in some nail polish removers, has a density of 0.791 g/mL. What is the volume of 20.4 g of acetone?
Na3PO4+CaCl2 ---> Ca3(PO4)2+NaCl if 0.996 g of Na3PO4 are provided, how many grams of Ca3(PO4)2 should be formed?
Which of the following strong electrolytic solutions will have the highest electrical conductivity?
write the balanced equation for the reaction of the active ingredients in Gaviscon Extra strength with excess acid.
In the welding shop of the XYZ Manufacturing plant you have a cylinder with a volume of 548L of a compressed gas, and the pressure gauge shows 238 psig at the room temperature 25 C.
you dissolve 15.0g of sucrose C12H22O11 in a cup of water (225g) what is the freezing point of solution (kf of water is -1.86).
When 25mL of a 120mL stock solution containing 2M AlCl3 is diluted to 80mL, how many moles of Al3+ are in the new solution.
In the first 12.0 s of the reaction, 1.8×10-2 mol of {rm{O}}_2 is produced in a reaction vessel with a volume of 0.260 L. What is the average rate of the reaction over this time interval?
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