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Find the pH of the equivalance point and the volume (mL) of 0.0884 M KOH needed to reach the equivalance point in the titration of 23.4 mL of 0.0390 M HNO2. Ka HNO2 = 4.5 x 10^(-4) Kb NO2- = 2.2 x 10^(-11) (* I already solved the volume of KOH at equivalance point. It ended up being 10.3237106 mL. I am just having trouble calculating the pH of the final solution at equivalance point. Please show a step-by-step process :)
The valence shell of the element X contains 2 electrons in a 5s subshell. Below that shell, element X has a partially filled 4d subshell. What type of element is X?
Determine what is the exact volume of the 250-mL Erlenmeyer flask express your answer (in mL)?
What is the concentration of the vitamin C standard solution? Using a balance, 125mg of Vitamin C was weighed out and was added to a 100-mL beaker and dissolved in 50mL of DI water.
Manganese forms the following oxide minerals: manganite (MnOOH), manganosite (MnO), pryolusite (MnO2), and hausmannite (Mn3O4).
If you have 330 ml of water at 25 degrees and add 110 ml of water at 95 degrees, What is the final temperature of the mixture.
Calculate the amounts of C 7 H 8 , C 7 H 16 , and H 2 in the output stream express your answer (in mol s -1 ).
how many moles of CO2 are produced when 5.40 mol of ethane are burned in an excess of oxygen
If, in a certain experiment, over a specific time period, 0.0033 mol PH3 is consumed in a 1.5-L container each second of reaction, what are the rates of production of P4 and H2 in this experiment?
A sculptor has prepared a mold for casting a bronze figure. The figure has a volume of 225 mL. If bronze has a density of 7.8 g/mL
Phosphorus trichloride gas and chlorine gas react to form phosphorus pentachloride gas. A gas vessel is charged with a mixture of PCl3(g) and Cl2(g)
Cadmium ion in solution is analyzed by precipitation as the sulfide, a yellow compound used as a pigment in everything from artists' oil paints to glass and rubber. Calculate the molar solubility of cadmium sulfide at 25?C ?
If 69.5 kJ of heat is applied to a 1039 g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
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