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The quantity 432 mg of a monoamino monocarboxylic amino acid isobserved to consume 7.39 mEq of acid and base in the titrationrange pH 0.8 to 12.0. What is the name of the amino acid?
Calculate the pH of a solution prepared by dissolving 0.15 of sodium benzoate and 0.3 of benzoic acid in water sufficient to yield 1L of solution.
What mass of NaCl is needed to react with 35.0 mL of the same AgNO3 solution?
Type the electron configuration for the following ions according to the rules in your text. Use the format {He} 2s2 2p2 for carbon. Pay attention to the spaces.
It takes 50.0J to raise the temperature of an 12.0g piece of unknown metal from 13.0 C to 24.0 C. What is the specific heat for the metal?
How many moles of hydrogen are consumed when 40.0 L of hydrogen chloride gas are produced in the following equation? H2 + Cl2 ---> 2HCl
A 1.91 L flask at 17degree contains a mixture of Nitrogen , He and Ne at partial prassure 0f 0.261 atm for N2, 0.195 atm for He, and 0.397 for Ne. Calculate the volume in liters at STP occupied by He and Ne if the N2 is removed.
A dry cleaning solvent with a molar mass of 146.99 grams/mole that contains C, H, and Cl is suspected to be a cancer causing agent. When a 0.250 gram sample was studied by combustion analysis, 0.451 grams of CO2 and 0.0617 grams of H2O was formed...
A solution that contains 55.0 g of ascorbic acid (Vitamin C) in 250. g of water freezes at -2.34°C. Calculate the molar mass (in units of g/mol) of the solute. Kf of water is 1.86°C/m.
If 132 mL of wet H2 is collected over water at 24°C and a barometric pressure of 736 torr, how many grams of Zn have been consumed?
In the titration, 20.46 mL of the sodium hydroxide was used to react with 0.1082 grams of KHP. What is the molarity of the NaOH?
what is the difference in a molecule and an
A septic tank leaks into the soil. The organic matter decomposes to produce carbon dioxide. Gas flow is restricted in the soil so that there is no air exchange to the atmosphere above
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