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a 750 ml volume of 0200 m nh3kb18e-5 is titrated with 0500 m hno3 calculate the ph after the addition of 210 ml of
a sample of 2500ml of 0100m hno2 in a flask is titrated with 0150m of naoh solution in a buret at 25c constants in
will a precipitate form on mixing 25ml of 10x10-3 m mnso4 25ml of 10x10-3 m feso4 and 200ml of a buffer solution that
what is the ph of a solution prepared by dissolving 0250 mol of nh3 in sufficient water to make 100 l of solution kb
hydrobromic acid is used to dissolve a sample of iron powder producing a solution of ironii bromidewrite the complete
a buffer is made using 490 ml of 0760 m hc3h5o2 ka 13 10-5 and 540 ml of 0600 m nac3h5o2 what volume of 020 m naoh
beggining with the absorbance of your unkown brass sample show ur calculations for a cu2 aq concentration b mass of cu
if you have 100 g of na and 50 g of h20 to perform the following reaction how many grams of naohaq will you produce2nas
from equation ekq1q2d and the ionic radii given in the figure calculate the potential energy of the following pairs of
if the procedure calls for one molar equivalent of dibenzyl ketone relative to the amount of benzil that you made in
ballon filled with 5000 ml of helium at atemp of 27 degrees c and 755 mmhg as the ballon risesin the atmosphere the
calculate the mass of honh2 required to dissolve in enough water to make 250 ml of solution having a ph of 1000 kb 11 x
calculate the ph that results when the following solutions are mixed 68 ml of 0500 m sodium acetate and 152 ml of 0350
a what is the mechanism for the reaction between acetophenone and p-anisaldehyde is the presence of sodium hydroxide
calculate an approximate heat of reaction for the combustion of one mole of methane gas ch4 to form gaseous h2o and co2
a if 500ml of naoh solution is required to react completely with 062g khp what is the molarity of the naoh solutionb in
samantha muir dissolved 031 grams of khp in 250 ml of water she found out that it required 155 ml of naoh to reach the
what are the common strong and weak acids and bases i need to recognize for titration equilibrium and anything else
a buffer is prepared by mising 204ml of 0452m hcl and 0500l of 0400m sodium acetate ka18x10-5 a what is the ph b how
the respective molar heats of fusion and vaporization in kjmol for h2o are 6008 and 4067 specific heats in jg c for the
hdegf rxn for co2g is -3935 kjmol the standard form of carbon is graphite find the fuel value in kjg for cgraphite fuel
the following five beakers each containing a solution of sodium chloride rm nacl also known as table salt were found on
electrical conductivity measurements show that 0050 m acetic acid is 19 dissociated at 25 c calculate pka and ka for
calculate the molarity of a solution of sodium hydroxidenaoh if 2364 ml of this solution is needed to neutralize 05632
find the ph of a solution and other stuff like that how do i know what to do when dealing with different combinations