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A buffer is prepared by adding 1.50X 10^2 ml of 0.250 M NaOH to 2.50X10^2 ml of 0.350 M weak acid, HB. The solution is diluted to 1.00 L. If the pH of the resulting solution is 6.55, what is the pKa of the weak acid
Give a detailed explanation why SN1 mechanisms are not stereospecific but SN2 mechanisms are very stereospecific causing
If the titrant has a molarity of 0.2750 M and there are 50.00 mL of analyte present, what is the molarity of the analyte?
What is the concentration of iron(III) ion in a solution made by taking 10.00 mL of a 0.300 M Fe3+ solution and diluting it to the mark in a 100.0 mL volumetric flask?
At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g) SO3(g) + NO(g)
pure nitrogen can be prepared when an aqueous solution of ammonium nitrite decomposes to form water vapor and nitrogen gas. How many grams of ammonium nitrate must have reacted if 3.75dm3 of nitrogen gas was collected over water at 26C and 97.8 kP..
Determine the V of a voltaic cell (E°cell) if it is required to do 5.43 × 10¯3 Kilo Joule of work when a charge of 2.50 C is transmitted.
showing electron flow with arrows, for the acid-catalyzed hydrolysis of ethyl acetate to acetic acid and ethanol- the reverse of a Fischer esterification reaction.
Determine the molar mass of chloroform gas if a sample weighing .389 grams is collected in a flask with a volume of 102cm cubed at 97 degrees Celsius. The pressure of the chloroform is 728 mmHg.
the pressure is measured as 8.75 atm. Which of these three gases below could be in the container and why? 1) Ar, 2)Co2, 3)HCl
Find the fugacity coefficient at the reaction conditions and calculate the effect of it on the reaction conversion.
Calculate the empirical formula and the molar formula.
Describe the biogeochemical cycles for H2O, C and N and describe how human activities have thrown them out of their natural balance.
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