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Explain the specific tests that would require to be carried out on an unknown sample suspected of having the carbonate, sulfate, and iodide:
In the preliminary tests 3 HNO3is added to the precipitate of the silver group. Discuss what ion is probably present if a yellow precipitate remains?
A student analyzes a sample using the preliminary tests and identifies that no precipitate is obtained upon the addition of the silver ion but a precipitate is observed on the addition of barium ion
Write down balanced chemical equations for this reaction. Calcium carbide, CaCl2, reacts with the H2O to produce the acetylene, C2H2and calcium hydroxide.
Calculate the precipitation reaction that occurs with a solution when the aluminum nitrate is added to a solution of potassium phosphate. Write down a balanced equation for this reaction.
The reaction is carried out in a constant-volume container. The dimethyl ether is present, and the pressure is 0.350 atm. determine the pressure of the system after 8.0 min and assume the ideal-gas
What would be the amount of energy change during the reaction? And would this energy be absorbed or released if the bonds in reactants contained 432 kJ of chemical energy and the bonds in the produ
Determine the numbers of moles of argon in a 121 ml fluorescent light bulb with a pressure of .003 atm at a temperature of 40 C
A 21 L container holds the 2.3 kg of ethane gas, C2H6, 11.8 kg of methane gas, CH4, and 1.1 kg propane gas, C3H8 and a unknown of another gas. Determine the numbers of the other gas are in the conta
Determine what volume of methane gas at 21 C and 1.1 atm must be compressed to yield the 1.5 x 104 L of methane gas at the 12 atm and 815 C?
How can determine the energy in the kJ/mol which is needed to remove the electron from the following orbital in an H atom:
Describe the definition of an activated methylene group? In the explanation could you contrast it to an un-activated methylene? Perhaps, you will require to explain the definition of an activated g
Determine the wavelength of a photon that would cause this electron to be ionized. Suppose the IP for the 3s1 electron in Na, a hydrogen atom, which is having 0.50 Mega joules/mole.
A sample which is having 5 ml of a solution of K2CO3 was diluted with the water to 23ml. A 10 ml sample of the dilute solution was found to contain .51M CO3 2-. Determine the concentration of K2CO3
If the formula for the dimer is P4O10, outline a set of acceptable Lewis structures for the monomers when one of the oxides of phosphorus has the same empirical formula but different molecular formu
Write down a conversion factor they could be used to convert among the moles of Si(OH)2 and moles of water from the equation SiCl4 + H2O --> Si(OH)4 + HCL.
SO2 (g) + 2H2s (g) ---> 3S (s) 2H2O (l) Determine the volume of sulfur dioxide at STP that would be necessary to form the 82.5 kg of sulfur.
One liter of water and one liter of oil are united. They form an emulsion consisting of droplets of 0.6 um in diameter. It has been measured that the oil-water interface is made of one monolayer of
The freezing point of a solution of 5.884 g of an unknown non-electrolyte dissolved in the 45.12 g of benzene is1.51oC. Pure benzene freezes at 5.48oC and its Kf value is 5.12oC/m. How can obtain
Determine the numbers of tetrapeptides which is having the serine, alanine, leucine, and the glutei acid do you think there are? By using the three-letter abbreviations to give the three names.
Calculate an Ea value for this reaction. Discuss is there any relation to the problem of storing fish for food? The rate of bacterial hydrolysis of fish muscle is twice as great at the 2.2oC a
The liquid and gaseous phases can only coexist for a single value of the pressure at a given temperature for a pure substance. Is this also the case for an ideal solution of two volatile liquids?
Describe how much energy does this corresponding to in kJ/mol when the MRI (magnetic resonance imaging) body scanners used in the hospitals operates with the 400 MHz (4.00 x 108s-1 radiofrequen
Calculate the mass of lead sulfate is produced in a lead-acid storage battery when the 1.14 g of Pb undergoes the oxidation?
Draw an efficient synthesis to make the decade from the acetylene and 1-butene. Suppose you may use any necessary organic of the inorganic reagent.