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Calculate the molar solubility and the solubility of iron (II) hydroxide in pure water then in 0.125M NaOH(aq).
Calculate the pH of a buffer solution prepared by dissolving 4.3 g of NaHCO3 and 5.5 g of Na2CO3 in 0.20 L of water.
If the freezing point depression of water is -1.86 degrees C/M, what would be the freezing point of this solution
Which formula represents a salt?
The paint formerly used on some storage tanks contained aluminum powder, which reflected heat from the surface of the tanks. Why did experts recommend grounding these tanks
What is the maximum amount of P2O5 that can theoretically be made from 186 g P4 and excess oxygen?
The pK value of the system is 6.1. If the [CO2] is expressed in terms of partial pressure and equals 1.3kPa and the bicarbonate concentration is 2.2 x 10^-3 M, what is the pH of the solution.
What is the concentration of sodium in a river water sample that reads 115.0? the correct answer is: 17.9 ppm. how to obtain this answer since the plot is not linear.
The "roasting" of 48.7 g of ZnS at constant pressure gives off 220. kJ of heat. Calculate the DH for this reaction. 2ZnS(s) + 3O2(g) ® 2ZnO(s) + 2SO2(g)
When potassium hydroxide runs out and we have to use potassium carbonate instead. Will potassium carbonate be a good titrant to use for selective precipitation?
Calculate Ecell for the following electrochemical cell at 25 °C Pt(s) | H2(g, 1.00 atm) | H+(aq, 1.00 M) || Pb2+(aq, 0.150 M) | Pb(s) given the following standard reduction potentials.
A volume of 80.0 ml of H2O is initially at room temperature (22.0 C). A chilled steel rod at 2.00 C is placed in the water. If the final temperature of the system is 21.1 C , what is the mass of the steel bar?
Calculate concentration of soil organic matter in content given the concentration of organic carbon
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