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1- How many moles of NaOH are required to prepare 5.00 L of 0.025 M solution?
2-What would be the molarity of a solution made by dissolving 4.50 g of KCl to make 250.0 mL solution?
3- How many milliliters of 0.500 M solution can be prepared by dissolving 7.00 g of NaCl in water?
Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid.
A 10.0 L vessel at 20*C contains butane, C4H10(g), at a pressure of 2.00 atm. What is the maximum amount of work that can be obtained by the combustion of this butane if the gas is first brought to a pressure of 1 atm and the temperature is brough..
H2C2O4(aq), Ka1 = 6.5 x 10-2 and Ka2 = 6.1 x 10-5. Don't forget that Kw = 1 x 10-14. Then Determine K for the reaction
A mixture of ammonium chloride and sand is placed in an evaporating dish and massed at 56.246g. The mixture is heated, driving off the ammonium chloride and massed again
need to neutralize the NH2 and stanilize the polyamide. I just want to clarigy we we need to wash it in HCl after interfacial polymerization.
the mass loss of the iron nail was 1.511. How many moles of iron were converted to Fe3+?
a voltaic cell is created with one half-cell consisting of a copper electrode immersed in 1.0 m cuso4 solution and the
a gaseous mixture of o2 and kr has a density of 1.140 gl at 415 torr and 300. k. what is the mole percent o2 in the
if 25.00mL of .2500 M formic acid is titrated with 25.00mL of .2500 M NaOH, what is the pH at the equivalence point? the Ka for formic acid 1.8x10^-4.
you reacted 11.5 grams of sodium sulfate and 55.0 ml of 0.500 M barium nitrate, how many grams of barium sulfate are made.
How much water must be added to 562 mL of 0.200 M HCl to produce a 0.148 M solution? (Assume that the volumes are additive.)
describe the preparation of 200 mL of 1.00% (w/v) aqueous CuSO4, from a 0.218 M CuSO4 solution.
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