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Question- A solution of sodium hydroxide was neutralized by sulfuric acid. The volume of sodium hydroxide solution used was 940.0 mL, and the concentration was 0.225 M. Calculate the moles of sulfuric acid that were neutralized (assuming that the reaction goes to completion). Provide your answer to three significant figures.
2NaOH (aq) + H2SO4 (aq) --> Na2SO4 (aq) + 2H2O (l)
Calculate the pH of 0.500L of a buffer solution composed of 0.20 M butyric acid (CH3(CH2)2)2COOH, Ka = 0.000015) and 0.10 M sodium butyrate, (NaCH3(CH2)2COO).
An aqueous solution is made by dissolving 24.5 grams of manganese(II) chloride in 466 grams of water.
1.20g sample of water is injected into an evacuated 3.00l flask at 45.0c. what percentage of the water will be vapor
One of the requirements for a Primary Standard is a high molecular weight. Why is this a requirement for a substance to qualify as a Primary Standard.
What is the concentration of [Cr2O7 ^-2] in the first dilution add that is made by adding 1.00 mL of DI water to 5.00 mL of the stock potassium dichromate solution?
Explain why the C=C stretching mode gives rise to a rather weak IR band in 1-methylcyclohexane, while in its isomer
The steel bomb of bomb calorimeter, which has a volume of 75 mL, is chaged with oxyen to a pressure of 145 atm at 22 C. Calculate the moles of oxygen in the bomb. Calculate the grams of oxygen in the bomb.
Compute the work associated with the expansion of a gas from 152 L to 189 L at a constant pressure of 14atm.
Calculate the {H30^+] of each aqueous solution with the following [OH^-] at 25 degrees C: A. NaOH, 1.0x 10^-2M B. asprin 1.8x 10^-11M C. Milk of magnesia 1.0x 10^-5M D. seawater, 2.0 x 10^-6M
Write equations showing how each of the following weak bases ionizes water to form OH- a) HCO3- b) CH3NH2 Identify all of the phases
it is given that the density of mercuryhg 13.5 gml density of h2o 1.00 gml. determine the barometric pressure of
Describe the titration curve for the titration of a weak base with a strong acid. Indicate the chemical reaction, the points that correspond to the equivalence point, the pH = pKa and the region with maximum buffering.
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