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A 0.5210 -g sample of an unknown monoprotic acid was titrated with 9.98×10-2 M NaOH. The equivalence point of the titration occurs at 23.70 mL. Determine the molar mass of the unknown acid.
If Kp = 0.032 at this temperature, what will be the equilibrium overall pressure starting from pure CaSO4(s)?
Problem- The ionization energy for lithium is 520 kJ/mol. The electron affinity for fluorine is -328 kJ/mol. Use these values and Hess's law to calculate the enthalpy for the following reaction per mole of reagent: Li(g)+F(g)?Li+(g)+F?(g), ?H=?
what is the vapor pressure at 40 degrees Celcius of a solution containing 4.60*10^2 g of glycerin, C3H8O3, nonvolatile, nonelectrolyte solute, in 4.5*10^2 g of water? The vapor pressure of water at 40 degrees Celcius is 55.3 mmHg
The fat content in milk can be measured by the extration with hexane. a 50.0g sample of whole milk was mixed with hexane and gently stirred.
how many grams of lead chromate form when a 1.00g sample of pbno32 is added to 25.0 ml of 1.00 m k2cro4
Cyclohexene also 2-hexyne both have the molecular formula C6H10. Explain how would you use infrared spectroscopy to distinguish between the two compounds
How much MgSO4 anhydrous do you need to make buffer
What mass of H2O is required to form 1.3L of O2 at a temperature of 320K and a pressure of 0.957atm.
How many grams of CaCO3 will dissolve in 2.8 multiplied by 102 mL of 0.050 M Ca(NO3)2? Calculate the molar solubility of AgCl in a solution made by dissolving 10.0 g of CaCl2 in 4.50 L of solution.
If 6.73 g of Na2CO3 is dissolved in enough water to make 250.0 mL of solution, what is the molar concentration of the sodium carbonate. What are the molar concentrations of the Na+ and CO32- ions
The sequence is first printing and then binding. Processing times for each work centre are shown in table 8.0.
1) 20.0 mL of a 0.10M weak acid (Ka= 1.56X10^-6) is titrated with a 0.20M strong base. a. What is the pH initially, before any titrant is added
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