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Calculate the molar solubility of calcium hydroxide in a solution buffered at pH = 3, pH =7, pH = 9. Ksp value for Ca(OH)2 from the textbook: 4.68*10^-6
How much benzoic acid should be formed and will it be pure (in theory)? Is 50mL of water an appropriate volume for this procedure. If not, what is the minimum volume of water required? Use calculations to aid in your explanation.
a swimming pool 20.0 m ? 12.5 m is filled with water to a depth of 3.71 m. if the initial temperature of the water is
A very strongly absorbing complex( Molecular weight: 100.0 g/mol) has a molar absorptivity of 40,000 M^-1 cm^-1. Assuming a 1.0 cm cell and a barely detectable transmittance of 99.1%, what is a reasonable lower concentration limit that one could d..
c6h5ohs 7o2g --gt 6co2g 3h2oga 2.000 gram sample of pure phenol c6h5ohs is completely burned according to the
What is the pH during the titration of 25.00mL of 0.10M NH3 (Kb = 1.8 x 10-5) after the addition of 10.00mL of 0.10M HCl titrant?
A component of a protein called serine has the following percent composition by mass: 34.95% C, 6.844% H, 46.56% O, and 13.59% N. It also has an approximate molar mass of 100 g/mol.
Lead poisoning in children used to be treated with intravenous injections of EDTA. If the concentration of EDTA in the blood of the patient is 2.60x10^-8 M and the formation constant for the complex
The temperature of the calorimeter increases by 82.9oC (Celsius). Given that the energy of combustion (?E) for lauric is -37.1 kJ/g, calculate the heat capacity of the bomb calorimeter. Make sure you enter kJ/C for your unit behind the number.
Which alkyl bromide reacts fastest with methanol. options: 2-Bromo-2-methylbutane 2-Bromopentane 1-Bromopentane 2,2-Dimethyl-1-bromopropane
In a reaction 8200 g of sodium reacts with 74.00 g of ferric oxide to form sodium oxide and iron metal. Calculate the mass of sodium iron produced.
Assuming that the heat capacities don't change with temperature, how much energy in kilojoules is needed to heat 5.25g of Hg from a temperature of -59.5C to 43.0C
When natural gas (mainly CH4) is burned with 10 percent excess air, in addition to the main gaseous products of CO2 and H2O, other gaseous products result in minor quantities. The Environmental Protection Agency (EPA) lists the following data: Emi..
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