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A 0.9760-g sample of potassium acid phthalate required 44.00 mL of barium hydroxide solution for titration. How do you calculate the molar concentration of the barium hydroxide.
175g pure H2O was placed in a constant-pressure calorimeter and chilled to 10C 9.8g pure H2SO4 (also 10C) was added, stirred and the temperature rose to 19.8C.
A sample containing both enantiomers is found to have an observed rotation of +0.87 degrees in a one dm tube at a concentration of 0.025 g/mL. What is the optical purity of the sample? What is the % of the dominant enantiomer in this sample?
If the pressure of CO2 is 0.550 atm, what concentration of carbon dioxide can be dissolved in water at 0.00C.
Assume that the maximum number of ATP's is produced (38). At pH 7, and in the presence of excess Mg2+
A student carrried an experiment to prepare hydrogen in the labrotary, if the student collected 145.5ml of gas at a pressure of 750 mmHg and a temp of 25 degree celcius.
Assuming that the total pressure of the gases is 1.52 and that their mole ratio is 94 : 4.0 : 1.5 : 0.50, calculate the partial pressure (in atmospheres) of each gas.
Consider the halide ions as nucleophiles. Briefly explain why F-, the strongest base among the halide ions, is the best nucleophile in polar aprotic solvents while iodide the weakest base
Write the balanced formula unit equation for the reaction of sodium with oxygen (use major product). What is the sum of the coefficients
Explain briefly how you could prepare the buffer solution in (a) if you had available the solid salt of the only one member of the conjugate pair and solution of a strong acid and a strong base.
When 0.5000L of a 1.00M solution of Pb(NO3)2 is mixed with and excess of 1.00M solution of KI how many grams fo lead(II) iodide are formed
A quantity of ice at 0°C is added to 66.4 g of water in a glass at 55°C. After the ice melted, the temperature of the water in the glass was 15°C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(..
how many grams of the compind potassium chloride must be dissolved in 200 grams of water to make a saturated solution at 60 C.
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