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Problem- A 500 mg die A 500mg dietary supplement of L-lysine (an amino acid, 146.2 g/mol) required 68.4 mL of 0.100 M NaOH to reach the end point. How many protons were removed for each L-lysine molecule in this titration?
I need proficient help to solve the above problem
a liquid unknown was found to be inslouble in water amp soluble in cyclohexane amp alcohol the unknown was found to
Write the expression for Kc for the following reactions. In each case indicate whether the reaction is homogenous or heterogeneous. a) 3NO(g) ?? N2O(g) + NO(g)
A 0.1000 m aqueous solution of a weak acid, HA, is 1.5% ionized. At what temperature does it freeze? Kf for water = 1.86°C/m.
how do you calculate the hydrogen ion concentration in moles per liter for a solution with at pH value of 11.21? Need the steps please.
A solution of an unknown nonvolatile electrolyte was prepared by dissolving 0.250 g of a substance in 40 g of CCl4. The boiling point of the resultant solution was 0.357 degrees Celsius higher than that of pure solvent. Calculate the molar mass of..
Methanol (CH3OH) reacts with oxygen to produce carbon dioxide and water. How many grams of oxygen will be required to react completely with 200 grams of CH3OH? What mass of water will be produced during the reaction?
Which of the following pairs has about the same atomic radius?
An uncharacterized compound Z is thought to have an amino group with a pKa of 10.0 and another ionizable group with a pKa between 4 and 7.
A mixture of N2, O2, and CO2 has a total pressure of 791. torr. In this mixture the partial pressure of N2 is 115. torr and the partial pressure of O2 is 193. torr.
The first equivalence point for the titration of 0.2567 grams of a weak acid is reached when a volume of 26.80mL of 0.0510 M NaOH(aq) has been added. What is the molar mass of the acid?
Explain what is the percent yield of lithium hydroxide with CO2 to yield lithium bicarbonate in which 50.0g of LiOH is reaction as well as 72.8g of LiHCO3 is experimentally obtained
morphine c17 h19 no3 is often used to control severe post-operative pain. what is the ph of the solution made by
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