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1) Consider the following weak acids and their Ka values:Acetic acid Ka = 1.8 x 10-5Phosphoric acid Ka1 = 7.5 x 10-3Hypochlorous acid Ka = 3.5 x 10-8
You are to prepare buffers at pH = 2.8, 4.5, and 7.5. In the 2nd column write the fomulas for the respective weak acid-conjugate base buffer system that is the best choice for each pH from the listed acids? Explain your reasoning
For pH = 2.8:For pH = 4.5:For pH = 7.5:
Calculate the empirical formula and the molar formula.
determines how many grams of glucose are in 100 mL of the final solution?
Give a detailed explanation why SN1 mechanisms are not stereospecific but SN2 mechanisms are very stereospecific causing
If the enthalpy of combustion of the compound is -2978.0 kJ/mol and the temperature of the calorimeter rises from 25.44 C to 27.7 C, how many moles of the compound were oxidized?
A 10.9 g sample of a certain gas was introduced into a constant volume container at 21 C. if the container were heated to 161C, how many grams of gas must be vented from the container
To prepare 5.0 L of a 3.50 M solution of Potassium Hydroxide (KOH), how many grams of Potassium Hydroxide must be used?
An interesting and unique feature of DNA is that it may be both replicated, thus ensuring genetic continuity, and transcribed, to enable expression of the genetic information.
The temperature of the calorimeter plus contents increased from 21.36 *C to 26.37 *C.
Draw the Lewis structure of chlorous acid (HClO2). The result is that around Cl there are Fill in the Blank 01 (a number) bonding groups and Fill in the Blank 02 lone pair(s) of electrons. The number and types of structural groups aroud Cl corresp..
what starting material are needed to prepare the following compound using malonic ester synthesis
Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can activate or deactivate the ring to substitution, donate or withdraw electrons inductively
A 50.0-g sample of metal at 100.0 degrees C is added to 39.0 g water that is initially 23.50 degrees C. the final temperature of both the water and the metal is 28.46 degrees C.
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