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Problem- What mass of sodium hydroxide must be added to 75.0 mL of 0.205 M acetic acid in order to create a buffer with a pH of 4.74? acetic acid Ka=1.8x10^-5
I desire help for above question. Illustrate each step for the above problem.
Chemical analysis shows that there are two hyrogen atoms for each carbon atom in each molecule. What is the formula of this molecule. Assume that the hydrocarbon acts like an ideal gas.
question a hot air balloon has a volume of 4.00 x 105 l at 30 deg. c and pressure of 748 mmhg. if the avg molar mass of
This reaction's half life is 35.0 at 680C. If you had 520 mmHg of phosphihne in an 8.00 L flask, how long does it take for the pressure in the flask to rise to standard pressure
write the amino acid sequence in the N-terminal to C-terminal direction. Use the three-letter amino acid abbreviations (for example, Glu-Asp-Val).
Write the equation for the esterification reaction between ethanol and acetic acid (ethanoic acid), Write the equation for the esterification reaction between ethanol and acetic anhydride(ethanoic acid anhydride)
Derive an equation for emission rate as well as concentration rate of carbon monoxide as a function of time? Considering a room with candle emitting CO.
liquid nitrogen has a density of 0.808 gml and boils at 77 k. researchers often purchase liquid nitrogen in insulated
Benzene is an organic liquid that freezes at 5.5 degrees celsius. how much heat is evolved when 25.5g of benzene freezes at 5.5 degrees celcius. (the molar heat of fusion is 9.94kJ/mol and the molar mass of benzene = 78.0g/mol)
Problem- a 2 ml sample was taken of a saturated solution of barium iodate at 10 degrees C. The sample was mixed with 2 ml of 0.5 M KI and 2 ml of 1 M HCl.
Unknown compound A (C8H12) is reacted with H2 (excess) in the presence of a palladium catalyst forming compound B (C8H16). In addition when compound A is reacted with O3 followed by zinc and acetic acid the following two compounds are formed
Suppose that the atomic mass unit (amu) had been defined as one-twelfth of the average mass of an atom of nitrogen instead of one-twelfth of the mass of an atom of carbon-12. What would the average atomic mass of potassium be on this new scale
cs graphite 2h2g lt----gt ch4 g deltah -75 kjfor each of the following situations state if the amount of each of the
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