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10.00 mL of a 0.250 M solution of HOAc is diluted to 100.0 mL as well as then titrated with a 0.100 M solution of NaOH. Define what volume of NaOH requires to be added to reach the endpoint? Define what is the pH at the endpoint?
what is the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. write none if no insoluble salt forms. a)AgNo3(aq) + Na2SO4(aq). b)KCl(aq) + Pb(NO3)2(aq). c)CaCl2(aq) + (NH4)3PO4(aq). ..
How many molecular orbitals will be formed by combination of the 3s and 3p atomic orbitals in 1.0 mol of Mg atoms. At 0 K, what fraction of these orbitals will be occupied by electron pairs (all orbitals filled up to the Fermi level)
Quantum numbers are used to uniquely identify an electron in an atom. The Pauli exclusion principle states that no two electrons in an atom may have the same set of four quantum numbers
Draw one energy diagram showing both reaction pathways & label all transition states, intermediates and products as well as activation energies. you may assume that the overall reactions are both exergonic while the first step in each reaction is ..
What is the temerature in C of gas if the volume is changed to 5.79 L and the pressure is changed to 765 mmHg if the gas originally has a volume of 4.00 L, a temp of 298 K, and pressure of 782 mmHg
Assume the density of the vinegar solution is 1.00 g/mL and 3.5 % by mass acetic acid.
Explain the Delta H for this reaction is 54.8 kJ. Explain how much energy would be absorbed if 27.1 g of NH_4Cl reacts
A perfect cube of aluminum metal weighs 20.00g. The density of of aluminum is 2.70 g/ml. What are the dimensions of the cube?
solid sodium hydroxide is dissolved in 127.3 g of water at 22.0 C in a perfect calorimeter. Assuming the heat capactity of the solution is the same as water, what is the final temperature of the solution?
Assume that fructose is a molecular solid and does not ionize when it dissolves in water.
What mass of carbon dioxide is present in 1.00 m3 of dry air at a temperature of 25c and a pressure of 731 torr
A sample of bananas in water is found to have a [H3O1+] = 2.51 x 10-5M. What is the pH of the solution? Are bananas acidic (A), basic (B), or neutral (N)
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