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An unknown salt is either NaF, NaCl, or NaOCl. When 0.050 mol of the salt is dissolved in water for form 0.500 L of solution, the pH of the solution is 8.08. What is the identity of the salt?
A mixture is prepared by adding 22.7 mL of 0.157 M Na3PO4 to 31.2 mL of 0.277 M Ca(NO3)2. (a) What mass of Ca3(PO4)2 will be formed? (b) What will be the concentrations of each of the ions in the mixture after reaction?
Calculate the percent ionization of 7.4x10^-3 M butanoic acid in a solution containing 7.0x10^-2 M sodium butanoate
Calculate the pH or the hydrogen ion concentration as required for each of the following substances: 0.075M acetic acid
Which of the following is not a buffer solution?
When iodine solution is mixed with cyclooctene, the color of the iodine disappears. Write a reaction that shows the product
To produce 225 moles of tetraphosphorus decoxide how many moles of oxygen are required?
the air in a 5.00- l tank has a pressure of 1.20 atm. what is the new pressure in atmwhen the air is placed in tanks
Molar Concentration of Copper (II) Nitrate, A 25.00 mL sample containing Cu2+ gave an instrument signal of 23.6 units (corrected for a blank). When exactly 0.500 mL of 0.0287 M Cu(NO3)2 was added to this solution
A 35.00 mL solution of 0.2500 M HF is titrated with a standardized 0.1978 M solution of NaOH at 25 C. a) What is the pH of the HF solution before titrant is added. b) How many milliliters of titrant are required to reach the equivalent point
Show how to synthesize 2-methyl-2-pentene from an alkyl halide and an aldehyde or ketone, plus any other necessary reagents.
why during a GC is the boiling point for some samples higher than the final temperature used during the run yet these samples still run
what purpose does the addition of bromine serve in the procedure described for the isomerization of dimethyl maleate
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