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The strong acid soultion of HCl has pH of 1.22. What is the concentration of [H+], [Cl-] and [HCl]
Consider the titration of a 20.0 mL sample of 0.105 M HC2H3O2 with 0.130 M NaOH What is the pH at the equivalence point
How does the entropy of the system PbI2(s) + H2O(l) change as PbI2(s) dissolves in water at 25°C?
How much limestone in kilograms would be required to completely neutralize a 5.2 x 109 L lake containing 5.0 x 10-3 g of H2SO4 per liter
The cell potential of the following electrochemical cell depends on the gold concentration in the cathode half-call. Pt(s)/H2(g,1atm)/H^+(aq,1.0M)/Au^3+(aq,?M/Au(s). What is the concentration of Au^3+ in the solution if Ecell is 1.30V
What is the approximate H-O H bond angle in ice, where H-O is the covalent bond and O H is the hydrogen bond
A weak monoprotic acid is exactly neutralized by 11.17mL of a standardized 0.1455M NaOH solution. If the Ka of the acid is 0.00084, what is the pH at the half-equivalence point.
Draw the isomer of C4H8Br2 that has the following 1H NMR spectrum: 1.97 (s, 3 H), 3.89 (s, 1 H).
What is the empirical formula for an prganic compound whose percentage composition is 40.0% carbon
A gas evolved during the fermentation of sugar was collected at 22.5°C and 702 mmHg. After purification its volume was found to be 25.0 L. How many moles of gas were collected?
The final equilibrium temperature of the resulting solution is 18.1 C. What is the enthalpy of solution, H, in kilojoules per mole of KBr?
0.035 moles of SO2, 0.500 moles of SO2Cl2, and 0.080 moles of Cl2 are combined in an evacuated 5.00 L flask and heated to 100 oC. What is Q before the reaction begins. Which direction will the reaction proceed in order to establish equilibrium.
The average person burns 12000 kJ of food energy per day(2,800,000 cal.) If the heat of combustion of sugar is 4000 cal/g, and the heat of combustuio of fat is 9000 cal/g: How many grams of sugar must eat to get a day's supply of energy
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