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Calculate the pH of a mixture containing 50 mL of 0.1M NaH2PO4 and 150 mL of 0.1M Na2HPO4. How many mL of 0.1M H3PO4 should be added to the above buffer to lower the pH by one unit?
Please explain your reasoning! I have the correct answer.
Could a percent transmittance reading of 0.00 be used in calculations? Briefly explain. Suggest a procedure that the student could follow to finish the experiment satisfactorily without weighing out a new sample of copper wire.
a 0.8612 g sample of a mixture consisting of nabr nai and nano3 was analyzed by adding agno3 to precipitate the br
Draw the major E2 reaction product formed when (1R,2S,4S)-2-chloro-4-methyl-1- (propan-2-yl)cyclohexane (shown below) reacts with hydroxide ion in DMSO.
What is the coefficient of H2O when the following equation is properly balanced with smallest set of whole numbers?
Three common hydrocarbons that contain four carbons are listed here, along with their standard enthalpies of formation: C4H6(g) 111.9 kJ/mol. Calculate the molar enthalpy of combustion to CO2(g) and H20(l)
A mass of 2.052 g of a metal carbonate, MCO3, is heated to give the metal oxide and 0.4576 g CO2.
Why must we the wavelength bet set to 447nm when the FeSCN2+ solution is an orange-brown colour
Propanoic acid has a Ka of 1.4 x 10^5. If we make a solution 0.100 M in propanoic acid, what concentration of sodium propanoate should be added to give a buffer with a pH of 5.0?
A solution contains 3.2x10-1M Co2+ and 2.5x10-3M Fe3+. NaOH is added to the solution, which cation will precipitate first?
container and found that no change had occurred after one week. Offer possible explanations for the lack of reaction. Assume that A, B, and C are totally miscible liquids.
calculate the volume, in liters, of each of the following solutions that provides the given amount of solute: a)5.00 mol of NaOH from a 12.0 M solution. b)15.0 g of Na2SO4 from a 4.00 M solution. c)28.0 g of NaHCO3 from a 1.50 M solution.
What would be the product if dimethyl maleate (cis-MeCCH=CHCO2Me) was heated in the presence of 3-sulfolene?
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