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In carrying out the ?rst standardization in this experiment, a student used 0.5899 g of potassium hydrogen phthalate (KHP) and 24.81 mL of a NaOH solution are needed to reach the equivalence point. What is the concentration of the student's NaOH solution?
find the molar mass of the unknown. 16.6 degrees C freezing point acetic acid and 3.90 degrees C*kg/mol?
you add 1.00 g of a solid weak acid to 100 ml of water then titrate with 0.100 m naoh solution. the ph at the half
The force to push electrons through a battery comes from (a) the energy levels of the electrolyte (b) the intrinsic work function difference of two different metals (c) from electricity (d) an unknown source of energy
Outline the changes that happen to the following groups or interactions in hemoglobin when oxygen binds todeoxyhemoglobin.
Problem- The second-order decomposition of NO2 has a rate constant of 0.255 M^-1 s_1. How much NO2 decompses in 4 s if the initial concentration of NO2 (1 L volume is 1.33
What combustion products are produced when materials made from polyacrylonitrile smolder and burn?
Write the net ionic equations for & the reactions occurring for each cation in the group.
Look up the chemical structure of ibuprofen. Do you think it inhibits the inflammation cascade in the same way as aspirin? Why or why not?
Which of the following metals will be oxidized by Pb(NO3)2: Zn, Cu, Fe? Write the balanced molecular, ionic and net ionic equations for the reaction.
We need to make a 4% NaOH solution in ethanol. How much NaOH do we add to 50.0 mL of ethanol to make a 4% NaOH solution. Density of Ethanol=0.789 g/mL molar mass= 46.06844 g/mol and NaOH molar mass= 39.997 g/mol.
calculate the mol O2 added in the air, using the fact that the N2 in the ?ue gas equals the N2 added in the air. Then make a carbon balance to obtain the total moles of C added.)
Write the balanced chemical equations to show the ionization reactions that occur when oxalic acid is in aqueous solution. I believe i would be starting with C2H2O4 + H2O----?
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