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If 2.50 g CuSO4 are dissolved in 8.0E2 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium
The ionization energy of tin is 708.0 kJ/mol. Calculate the maximum wavelength of light that will ionize tin.
A volume of 18.0 L contains a mixture of 0.250 mols N2 , 0.250 mols O2 , and an unknown quantity of He. The temperature of the mixture is 0 degrees C , and the total pressure is 1.00 atm.
what is the molarity of a solution that contains 5.2g urea (molecular weight = 60 amu) in 250g of benzene?
A steel railroad bridge uses a zinc sacrificial anode to limit the extent of oxidation of the steel. If a 5.1 kg anode is completely ozidized to Zn2+ over the course of 15.5 years, compute the average current flowing through the anode.
0.3 M NaH2PO4 calculate acidic and basic buffer capacity. How muc of strong base needed to bring buffer pH one unit up?
Compute the average decomposition rate of the organic acid - Average decomposition rate of the organic acid
a saturated solution of bariumchloride at 30C contains 150g water. how much additional barium chloride can be dissolved by heating
Draw the major organic product formed when toluene reacts with nitric acid in the presence
Determine the concentration of an unknown hydrochloric acid solution that requires 70.5 mL of 1.6 M barium hydroxide to completely neutralize
A sample of neon has a volume of 780 mL when it is at a pressure of 751 mmHg. What will be the volume when the pressure is increased to 1389 mmHg?
How many grams of potassium nitrate are required to prepare 0.250 L of a 0.700 M solution?
What concentrations of [K2HPO4] and [KH2PO4] will you need to make the total concentration 0.50 M? 3.) How many moles of K2HPO4 and KH2PO4 will you need? 4.) What mass of K2HPO4 and KH2PO4 will you need?
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