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Problem- 17.4 mL of 0.10 M Na2S2O3 (sodium thiosulfate) was needed for titration of 25.00 mL of diluted bleach, calculate the molarity of the diluted bleach (hypochlorite ion)
The mole ratio of sodium thiosulfate to sodium hypochlorite is 2:1
Articulate your answer to two significant figures as well as comprise the appropriate units
Calculate the theoretical amount of 2.5 M NaOH (10%) solution needed to convert the benzoic acid to its water-soluble salt. Is the combined volume of NaOH used in the extractions sufficient for complete deprotonation of benzoic acid
what effect does changing from room temperature to 37 have on the activity of the enzyme? 5 what does copper II sulfate to do the enzyme
Explain how many stereoisomers are probable for each of the following structures. Draw them and name each by the R-S and E-Z conventions. A. 4-methyl-2, 5-heptadiene B. 1, 2, 5-trichloro-3-hexene.
Delta G for the reaction Ag2 O(s)----->2Ag(s)+1/2 O2(g) is +11 kJ/mole. What will be the value of delta G for this reaction at 25 C when the oxygen pressure is 0.19 atm. A. 6.9 kJ/mol B. 8.9 kJ/mol C. 10 kJ/mol D. 13 kJ/mol
A compound with the empirical formula CH2O was found to have a molar mass between 89 and 91 g. What is the molecular formula of the compound?
draw the structure of a hydrocarbon that reacts w 2 equivalent of h2 h sub 2 on catalytic hydrogenation and gives only
consider radiation of wavelength of 8000 Angestroms, at a temprature of 1000 K. using a planck law, calculate the energy per unit volume
A 10.00 mL aliquot of weak base is titrated with HCl. The equivalence point is reached after 17.21 mL of 0.4332 M HCl has been added. The pH is equal to 10.03 after 5.00 mL of HCl was added. Determine:
How much 0.02500 M nitric acid solution (in mL) is needed to titrate 125.0 mL of a 0.01000 M calcium hydroxide solution? Hint: Begin by writing the acid-base neutralization reaction
3.5 g of a hydrocarbon fuel is burned in a vessel that contains 250. grams of water initially at 25.00 C. After the combustion,the temperature of the water is 26.55 C.
Aqueous hydrobromic acid will react with solid sodium hydroxide to produce aqueous sodium bromide and liquid water . Suppose 36.4 g of hydrobromic acid is mixed with 5.9 g of sodium hydroxide.
The vapor pressure of water at 40.0 degrees celcius is 55.32 mmHg. Calculate the vapor pressure of a solution of 1.50m K2CO3 at this temperature (assume 100% dissociation)
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