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Explain what will the pH be for a solution that consists of equimolar weak acid and the anion of the weak acid where the Ka for the weak acid is 6.4 x 10-5?
6.4
5.8
5.0
4.2
Chemistry, Academics
With the provided indicated equilibrium constant, Is the equilibrium mixture made up of predominately reactants, predominately products or significant amounts of both products and reactants? 2 O 3 (g) -------- 3 O 2 (g ...
Suppose 1.7 g of zinc is treated with 6.2 g of pure hydrogen chloride. What is the maximum mass (in g) of hydrogen gas that can be produced?
How many formula units of barium fluoride (BaF2) are in 1.63g of BaF2 How many formula units of aluminum chloride (AlCl3) are in 0.582g of AlCl3 How many grams of caffeine (C8H10N4O2) contain 2.53×10^24 molecules of caff ...
A 44.0 g sample of an unknown metal at 99.0 o C was placed in a constant-pressure calorimeter of negligible heat capacity containing 80.0 mL water at 24.0 o C. The final temperature of the system was found to be 28.4 ...
An 18g ice cube initially at -10C is dropped into 120 g of water initially at 25C. What is the final temperature of the system after all of the ice has melted? Use the data provided in the reference data sheet and assume ...
What would be the effect on our body chemistry if large numbers of enzymes were to become malformed and how do they become malformed?
What is the volume of a solution with a concentration of 1.2 M that contains 12 g of NaOH?
Consider the following questions: (a) What is the total volume of the CO2(g) and H2O(g) at 600 °C and 0.888 atm produced by the combustion of 1.00L of 2H6(g) measured at STP? (b) What is the partial pressure of H2O in th ...
A chemist must prepare 450. mL of 130. mM aqueous aluminum sulfate (Al2(SO4)3) working solution. He'll by pouring out some 0.452 mol/L aqueous aluminum sulfate stock solution into a graduated cylinder and diluting it wit ...
Explain why the mass of the crucible and anhydrous salt is less than the mass of the crucible and the hydrate. What is the chemical formula of copper (II) sulfate?
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