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Assume that you start with 0.557 g of copper turnings and the initial number of moles of Cu is 8.77×10-3 mol.The minimum volume of 16.0 M HNO3 required to dissolve all of the copper is 2.19 mL.
If, in practice, 5.0 mL of 16.0 M nitric acid were added to effect the dissolution of the copper, what would be the minimum volume of 4.00 M NaOH required to neutralize the remaining acid and convert all of the Cu2+(aq) to Cu(OH)2(s)?
Calculate the minimum volume of 1.00 M H2SO4 required to dissolve all of the CuO(s)
Calculate the minimum mass of zinc required to reduce all of the Cu2+(aq)to Cu(s)(Note that, in practice, a significant excess of zinc is used due to loss of H2(g).)
Adrenaline is the hormone that triggers the release of extra glucose molecules in times of stress or emergency. A solution of 0.64 g of adrenaline in 36.0 g of CCl4 elevates the boiling point by 0.49°C. What is the molar mass of adrenaline?
A 0.1000 m aqueous solution of a weak acid, HA, is 1.5% ionized. At what temperature does it freeze? Kf for water = 1.86°C/m.
Using pH-based arguments only, why do scientists use phosphate-based bufers instead of buffers made using acetic acid
The great escape puzzle. Capture the ions and put them back into their jars. There are 8 jars. Label each jar with the formula of the compound containing the captured ions.
Fundamentals of acids and bases - Water self ionizes to a small extent creating equal concentrations of hydronium and hydroxide ions. Find the molar concentration of these ions in water at 25 o C?
The atmospheric pressure 4.The volume for the vapor to occupy above the liquid 5.The temperature of the liquid
It is known that N2O is a linear molecule, but assume it is not known whether the structure is N-N-O or N-O-N. Use the IR data to decide between the two structures. What Vibrations can be assigned to the strong absorbtion bands? What are the possi..
The solutions mixed together are 53.6 mL of 0.129 M hydrochloric acid, 104.1 mL of 0.215 M of nitric acid, 501.5 mL of 0.0126 M calcium hydroxide, and 201.0 mL of 0.122 M rubidium hydroxide. Did the acids and bases exactly neutralize each other?
What is the percent by mass of NaHCO3 in a solution containing 80 g of NaHCO3 dissolved in 600 mL of H2O?
the only difference between succinate and fumarate is the geometry around their double bonds, one contains a cis double bond,
sotonic saline solution, which has the same osomotic pressure as blood, can be prepared by dissolving 0.923 g of NaCl in enough water to produce 100.mL of solution. What is the osmotic pressure of this solution at 25 ?C?
Calculate the concentration of all ionic species at equilibrium after adding 1 g sodium acetate to 0.1 L of a 0.1 M solution of acetic acid. Assume volume stays constant and conditions are at standard state
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