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What is the molarity of a hydrocholric acid solution if 20.00 ml of HCL is required to neutrilize .424 of sodium carbonate (105.99 g/mol)2HCL + Na2CO3 = 2NaCL +H2O + CO2
What concentration of sodium chloride in water is needed to produce an aqueous solution isotonic with blood (blood, pi=7.70 atm at 25 degree C)
The ion is stabilized due to the delocalization of the positive charge to the aromatic ring. Draw resonance structures that indicate the stability of this ion.
At what temperature does benzene boil when the external pressure is 480 ?
A substance has a molecular mass of 100g/mol. How many ug are in a 700mm3 volume of a 2mM solution?
calculate the mass of silver chloride required to plate 215 mg of pure silver if silver chloride contains 75.27
Write the balanced complete ionic equations and net ionic equations for the reactions that occur when each of the following solutions are mixed. AgNO3(aq) and K2SO4(aq)
what is the freezing point (in degrees celcius) of a solution prepared by dissolving 11.3 g of Ca(NO3)2 in 115g of water. the molar mass of Ca(NO3)2 is 164g/mol
Give the balanced net ionic equations with states of matter indicated for the process taking place when the named aqueous solutions are mixed, and indicate the type of reaction if any by the following abbreviations
The densities of methanol and water at this temperature are 0.782 g/mL and 1.00 g/mL, respectively. For this solution, calculate each of the following: molarity, molality, percent by mass, mol fraction, and mol percent.
What is the ratio of C-14 in a wooden object made in 100 BC to the one made of the same kind of wood in 700 BC? Half life of carbon-14 is 5730 years.
What is the pH of a solution that is 0.29 M in acetic acid, HC2H3O2, and 0.74 M in sodium acetate, NaC2H3O2, at 25°C? Ka of acetic acid is 1.8 × 10-5.
A 9.70-g piece of solid CO2 (dry ice) is allowed to sublime in a balloon. The final volume of the balloon is 1.00 L at 298 K. What is the pressure of the gas?
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