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Silver dichromate is a sparingly soluble salt. The solubility of silver dichromate at 15oC is 1.922 x 10-4 M.
(a) Write the expression for Ksp for silver dichromate.
(b) Determine the Ksp for silver dichromate.
(c) What effect will the addition of silver nitrate solution have on the solubility of silver dichromate in a saturated solution? Explain your answer.
In a particular experiment, it was found that the concentration of N2O5 in liquid bromine
varied with time as follows
t/s 0 200 400 600 1000
[N2O5]/mol dm-3
0.110 0.073 0.048 0.032 0.014
Confirm that the reaction is first-order in N2O5 and determine the rate constant.
The reaction 2NO2(g) → 2NO(g) + O2(g) is postulated to occur via the mechanism below:
Step 1: NO2(g) + NO2(g) → NO(g) + NO3(g); k1, slow
Step 2: NO3(g) → NO(g) + O2(g); k2, fast
What is the rate law for this reaction?
The decomposition of magnesium carbonate (MgCO3) forms 18 grams of magnesium oxide (MgO) in an experiment. The theoretical yield is known to be 21 grams. What is the percentage yield of magnesium oxide (MgO)?
The solubility of mityle amine is 25 ° C. The temperature is 8.49 times higher in water than in chloroform. Determine the percentage of base remaining in the following cases in 1000 ml, chloroform. (a) Four times, 200 ml each time. Extraction from water. (b) Extraction from 400 ml of water twice, each time. (c) Extraction from 800 ml of water once.
1.Write down the electron configuration of the atom when it is in its charged state as stated above. (One sentence)
2.Write down 4 quantum numbers for the electron/s present in its 5th shell.
3.What kind of bond will be formed due to the reaction with the earth element? Explain your reason behind that. Why the compound became soluble? Can it make covalent bond in any way? (Not more than 50 words).
4.Let’s consider, X3+ where the mass number is 41 and electron number is 20. What would be the neutron number? Write the mass number of two possible isobars for this element.
5.Prove Pauli’s exclusion principle for the electron that is present in the 4th shell with the electrons that are present in the 3s orbital of copper.
6.Write down two limitations for each of the Rutherford’s atomic model and Bohr’s model for the element copper. Relate the element for each case while describing the limitations.
1.Write down the electron configuration of the atom when it is in its charged state as stated above. (One sentence)
2.Write down 4 quantum numbers for the electron/s present in its 5th shell.
3.What kind of bond will be formed due to the reaction with the earth element? Explain your reason behind that. Why the compound became soluble? Can it make covalent bond in any way? (Not more than 50 words).
4.Let’s consider, X3+ where the mass number is 41 and electron number is 20. What would be the neutron number? Write the mass number of two possible isobars for this element.
5.Prove Pauli’s exclusion principle for the electron that is present in the 4th shell with the electrons that are present in the 3s orbital of copper.
6.Write down two limitations for each of the Rutherford’s atomic model and Bohr’s model for the element copper. Relate the element for each case while describing the limitations.
The first-order rate constant for the decomposition of N2O5 to NO2 and O2 at 70 °C is 5.3 × 10–3 s–1. Suppose we start with 0.500 mol of N2O5(g) in a 0.700 L container, how many moles of N2O5 will remain after 1.5 min?
Write down the electron configuration of the atom. Does it follow the normal Aufbau Principle? Yes/No
At what pH would the solution finally stabilize and level off when adding acid or base to water?
