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What is the pH of a solution that contains 0.33 M HC2H3O2 and 0.30 M C2H3O2-. Use Kb = 5.6 x 10-10, for C2H3O2
Common oxidation states of mercury are 1 and 2. In the 1 oxidation state, mercury forms a diatomic cation. In the 2 oxidation state, mercury is a typical monatomic cation.
at 25 c and 1.0 atm pressure, it is found that 2.24 L of gas weighs 1.56g. The molar mass of the gas is?
how many N2 molecules can be produced after the explosion of 2.37 kg of NH4NO3? (Molar mass of NH4NO3 is 80.06 g/mol.)
Calculate the mass of minerl azurate, Cu3(OH)2(CO3)2 required to produce 12.5 g of copper . ans : 22.6 g
Calculate the theoretical pH of TRIS at pH 8 at 0 degrees C . Assume room temperature is 22 degrees C .
In the standardization of NaOH, 38.76 mL of NaOH was required for 0.8169 g potassium acid phthalate. Estimate the accuracy we should expect in the molarity of the NaOH solution assuming the weighing error is ±0.1 mg
Show how all four hydrogens in sodium borohydride can act as a reducing agent hydride. What is the minimal amount of NaBH4 is needed for reduction of 1 mole of aldehyde.
Calculate the density of a solution if the following data has been recorded during a lab experiment
Describe/explain the possible effect on your results of the following experimental errors or variations
A canister is filled with 320 g of ice and 100. rm g of liquid water, both at 0 rm{^{circ}C} . The canister is placed in an oven until all the rm H_2O has boiled off and the canister is empty. How much energy in calories was absorbed?
how many grams of lithium bromide must be added to 35 grams of water to make a solution
Calculate ?SO (universe) for the formation of 1.00 mol of HCl (g) from gaseous hydrogen and chlorine at 25 OC. Is the reaction spontaneous at that temperature
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