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In a titration of HCL, I have a molarity of 0.991 NaOH and a volume of 7.6 mL to reach an equivalence point for the titration. I need to figure out the number of moles of NaOH from these figures. Please show all stoichiometry steps.
One adds 25.00 mL of the solution in # 26 above to a 100 mL volumetric flask and adds enough water to fill the flask to the mark with stirring. (a) What is the molarity of the resulting solution
A 35.0ml sample gas is enclosed is in a gas tight syringe at 22 degress celcius. If the syringe is immersed in an ice bath a 0 degress celcius, what is the new gas volume.
Describe the development of the modern periodic table. Include contributions made by Lavoisier, Newlands, Mendeleev, and Moseley.
What volume of a 0.23 M solution of copper sulfate is needed to contain 3.21 millimoles of copper sulfate?
in an extraction of benzoic acid from a three part mixture containing benzoic acid methyl orange and previously
An analysis is performed on an organic liquid with a fishy odor. Vaporization of 260.0 mg of the compound in a 190-mL bulb at 100°C gives a pressure of 410.0 torr
a 145 g aluminum cylinder is removed from a liquid nitrogen bath where it has been cooled to -196deg c. the cylinder is
how much heat energy is required to raise the temperature of 0.365 of copper from 23.0 to 60.0 ? the specific heat of
The atomic mass of element X is 22.99 amu. A 19.98-g sample of X combines with 16.51 g of another element Y to form a compound XY. Calculate the atomic mass of Y.
What is the final temperature in a squeezed cold pack that contains 40.0 g of NH4NO3 dissolved in 135 mL of water? Assume a specific heat of 4.18 J/(g·°C) for the solution, an initial temperature of 25.0°C
Reduction of Conjugated Ketones with Sodium Borohydride, Suggest mechanisms of reaction for 1,2-addition and for conjugate addition (1,4-addition) of NaBH4 to a conjugated
The nitrogen in a 4-tablet sample that weighed a total of 7.50 g was converted to ammonia by Kjeldahl digestion, followed by distillation into 100.0 mL of 0.1750 M HCl. The analysis was completed by titrating the excess acid with 11.37 mL of 0.108..
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