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A solution contains [Ba2+] = 5.0 × 10^-5 M, [Zn2+] = 2.0 × 10^-7 M, and [Ag+] = 3.0 × 10^-5 M. Sodium oxalate (Na2C2O4) is slowly added so that the following salts are formed.
Salt: BaC2O4 ZnC2O4 Ag2C2O4
Ksp: 1.5 × 10^-8 1.35 × 10^-9 1.1 × 10^-11
What is the order of the cations that would precipitate with the addition of C2O42-? (Hint: The cation that requires the lowest molarity of C2O42- to precipitate would precipitate first.)
A cook wants to heat 1.73 kg of water from 30.0C to 100.0C .If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn.
Explain clearly the properties of agood freezing agent basing the explanation vant hoffs factor and on colligative property.
Calculate the change in molar Gibbs energy, ?Gm, of liquid mercury initially at 1.00 bar pressure if a pressure of 1000. bar is applied to it. The process occurs at the constant temperature of 25 ºC
calculate the molecular mass of paba a common sunscreen agent. when 8.32g of paba is dissolved in 150.0g of chloroform
Aerosol cans have a label that warns the user not to use them above a certain temperature and not to dispose of them by incineration. Even an empty can contains residual gaseous propellant.
A sample of helium gas has a volume of 8.23 L at 258.8 K and 2.049 atm. How many helium molecules does it contain
An atomic face-centered cubic crystal is 3.92 Angstroms on an edge as well as has a density of 21.5 g/cm3. Explain what is its atomic mass
To determine the enthalpy change for this reaction, 0.158 g of Mg metal is combined with enough HCl to make 100.0 mL of solution in a coffee-cup calorimeter of negligible heat capacity.
of an apparatus that could be used to electroplate a ton spoon with Ag. Label the anode and cathode, suggest an electrolyte, and write the anode and cathode half reactions. explain how the process takes place.
A metal, M reacts with sulfur to form a compound having the formula M2S. 8.38 g of the metal produces 9.95 g of the compound. Explain what is the molar mass of the metal?
Draw lewis structure of NO3Cl include lone pairs of electrons, resonance structures and formal charges (minimized). The basic structure is O=N(-O)(-O-Cl). Where N is double bonded to one O and single bonded to two O atoms. Also, one of the O atoms..
A fixed quantity of gas at 21 exhibits a pressure of 730 and occupies a volume of 4.40. Use Boyle's law to calculate the volume the gas will occupy if the pressure is increased to 1.85 while the temperature is held constant.
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