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Explain what is the molarity of a Ba(OH)2 solution, 8.05mL of which neutralizes 10.00mL of 0.204M HNO3?
an unknown cu2 sample gave an absorbance of 0.262 in an atomic absorption analysis. then 1.00 ml of solution containing
determine the kelvin temperature required for a 0.0470 mol of gas to fill a balloon to 1.20 l under 0.988 atm of
when 1.000g of tropinone is burned in a calorimeter with heat capacity of 25.950kjc the temperature increases from
The normal boiling point for acetone is 56.6 degrees Celsius. At an elevation of 5300 ft the atmospheric pressure is 630 torr. What would be the boiling point of acetone (enthalpy of vaporization=32.0 kj/mol) at this elevation? What would be the v..
a piece of galena has a volume of 3.9 cm3. if the density of galena is 7.5 gcm3 what is the mass in kg of that piece of
after balancing of the equation for the reaction under basic conditionsbi2o3s ocl-aq --gt cl-aq bio3-aqwhat is the
If 2.50 g CuSO4 are dissolved in 8.0 x 102 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium
Butane's (C4H10) molar enthalpy of vaporization is 22.44 kJ/mol and its normal boiling point is -0.40 °C. A 250-mL sealed Erlenmeyer flask contains 0.55 g of butane at -22 °C. a. What is the equilibrium vapor pressure under these conditions?
the density of a certain aqueous solution is 1.17gml and the solution is 3.57 by mass naoh. how many ml of this
What observed rotation is expected when a 1.06 M solution of (R)-2-butanol is mixed with an equal volume of a 0.530 M solution of racemic 2-butanol,
54g of a certain metal at 98 degree Celsius was placed into 80ml of water at 297K. Assuming no heat is lost to the surrounding, what is the temperature of the water and the metal
The heat evolved when a mole of octane undergoes complete combustion is 1303 kcal. This is called the heat of combustion. How many kcal of heat wil be generated when 148 grams of octane react with 952 grams of oxygen? Show calculations.
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