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If the sample of saturated calcium hydroxide with added calcium chloride which you obtained had important amounts of solid calcium hydroxide, would the reported molar solubility of Ca (OH) 2 in this sample be higher than lower than or equal to the true solubility?
A 25.00 mL sample containing Fe3+ was treated with 10.00 mL of 0.0367M EDTA to complex all of the Fe3+ and leave excess EDTA in solution. The excess EDTA was then titrated, requiring 2.37 mL of 0.0461M Mg2+ standard solution.
For the reaction, 2 A(g) + 2 B(g) => C(g) + 3 D(g), the following data were obtained at constant temperature.Experiment Initial [A], mol/L Initial [B], mol/L Initial Rate, M/min
The average mass of a carbon atom is 12.011. Assuming you were able to pick up only one carbon atom, the chances that you would choose a carbon atom with a mass of 12.011 is:
The solubility constant of TlBr is Ksp = 3.6 × 10^-6 and the solubility constant of AgBr is Ksp = 5.0 × 10^-13. Determine the range of NaBr volumes over which each solid precipitates.
Chloroform has Hvap=29.2 kj/mol and Svap=87.5j(K*mol). what is the boiling point of chloroform in Kelvins
Use the Nernst equation and data from Appendix D to calculate Ecell for each of the following cells. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4
The combustion of 2.150 mmol of X caused the temperature of a bomb calorimter to rise from 23.650 oC to 26.350 oC. Assume T = 25.000 oC, Hcomb = -2480 kJ/mol, and ng = -4 mol gas/mol X for the combustion and determine the heat capacity of the calo..
Calculate the molarity of each of the following solutions: (a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution, (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution, (c) 9.00 g of sodium chloride (NaCl) in 86.4 mL of solution.
19.0 mL of 0.126 M diprotic acid (H2A) was titrated with 0.1017 M KOH. The acid ionization constants for the acid are Ka1= 5.2*10^-5 and Ka2= 3.4*10^-10.
What is the final concentration of Na+ after adding 230 ml of water to a stock solution of 2.5M 420.0 ml Trisodium phosphate?
What is the percent yield of a reaction in which 244 g phosphorus trichloride reacts with excess water to form 144 g HCl and aqueous phosphorus acid (H3PO3)?
a medical researcher has 40 and 5 solutions. how much of each solution must she mix to get 0.6 liter of a 20
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