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In the following buffer system, what happens to the concentration of the highlighted molecule if you add base in the form of OH-?
HF + NaF + H2O F- + H3O+ + Na+
Increases
Decreases
Stays about the same
Buffers do not change.
None of these
If there is a phasechange you need to then write a net ionic equation and list the spectator ions barium chloride plus silver nitrate equals barium nitrate plus silver chloride
A mixture of Na_2CO_3 and NaHCO_3 has a mass of 81.5 . It is dissolved in 1.00 of water and the pH is found to be 9.92. Find the mass of NaHCO_3 in the mixture?
upon responding to a 200 a.m. domestic transportation mishap your hazmat team determines that a liquefied compressed
what is the lewis structure of C2H2Br2, also is it polar or non polar, are there any resonance structures or isomers?
A student is required to generate 90.0 mL of carbon dioxide at 750 mm Hg and 21C using potassium hydrogen carbonate and HCl. What is the mass of the potassium hydrogen carbonate needed?
How would I name the organic compound with a 5 carbon chain, one double bond between 3,4 carbons and 2 Br groups on the 2,4 carbons
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 are the reactions happen at the negative limit. Why is the negative limit in a given medium always more positive for platinum than it is for glassy carbon
What is the total pressure (in atm) in a 15.0 L flask 20.0 degrees celcius, which contains 0.127 moles of H2 and 0.288 moles of N2?
Choose the selection which correctly characterizes all three of the following substances in terms of whether they are polar or nonpolar: IF and NCl3 and SiF4
What is the equilibrium constant, Kc, for the reaction at this temperature?
How much heat is evolved in converting 1.00 mol of steam at 155.0C to ice at -45.0°C? The heat capacity of steam is 2.01 J/(g⋅°C) and of ice is 2.09 J/(g⋅°C)
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