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Problem- You are titrating 0.1 M acetic acid with 0.1 M potassium hydroxide. What is the pH at the equivalence point of the titration? Kb (CH3COO-) = 5.6 x 10^-10
The answer was 8.7 but I kept getting 2.8 help?
Explain the each step. Explain the process and each step.
write balanced reaction equations for the reactions involved a) when aspirin dissolves in aqueous NaHCO3 and b) when aspirin is precipitated from a sodium acetylsalicylate solution by HCl.
a 30 g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. what is the momentum of the car?
What is the partial pressure of O2 (in millimeters of Hg) in a hyperbaric chamber pressurized to 5 atm with air that is 18% in
Determine a value for the gas constant, R, in units atm L/mol K. Using the following data. Determine the precent error between your value and the expected value for R. This is over water.
How many grams of are CaH2 needed to generate 147L of H2 gas if the pressure of H2 is 827 torr at 20 C?
complete hydrolysis of 50 mm methyl butyrate in an enzyme ie esterase-catalyzed reaction is carried out in a 50 mm kcl
To titrate a 5.00 mL sample of a saturated aqueous solution of sodium oxalate, it requires 25.31 mL of 0.02233 M potassium permanganate. How many grams of sodium oxalate would be present in 250.0 mL of the saturated solution
A sample of sodium reacts completely with 0.497 kg of chlorine, forming 819 g of sodium chloride. What mass of sodium reacted
Problem- In the experiment of classifying matter by properties what common substance can be found in all three physical states under various atmospheric conditions. Give a common name. For each state.
What is the volume of the solution that would result by diluting 70.00 mL of 9.19×10-2 M {\rm NaOH} to a concentration of 1.60×10-2 M
What was the pH at the end of the reaction? e) What would the final pH be in the absence of any buffer?
a sample of cacl2 of 11.8 grams is dissolved in water of 121 grams with both substances at the normal room
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