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To a 1.00 L flask is added 0.010 moles of Cu2+ and 0.030 moles of NH3. The Cu2+ and NH3 combine to form several complex ions of copper that have formulas ranging from Cu(NH3)2+ to Cu(NH3)42+. What are the mass balance expressions for copper and ammonia in this solution?
As you saw in Part B, the vapor above the cyclohexane-acetone solution is composed of both cyclohexane vapor and acetone vapor. What mole fraction of the vapor above the solution, , is cyclohexane
Assuming that the specific heat of water is 4.18 J/(g ? °C), and that the heat absorption by the calorimeter is negligible, estimate the enthalpy of combustion per mole of anthracene
Find the voltage developed by a cell consisting of Tl metal dipping in an aqueous solution that is 0.32 M in Tl+, connected by a porous bridge to a 0.69 M aqueous solution of HCl in contact with a Pt electrode over which H2 gas is bubbling at p = ..
The element boron has two naturally occurring isotopes with masses of 10.0129 amu and 11.0093 amu. What is the percent abundance of the second isotope?
a liquid unknown was found to be inslouble in water & soluble in cyclohexane & alcohol; the unknown was found to have a boiling point of 58 degress celsius at 670mm Hg. What is the substance? What could you do to confirm your answer?
A balloon has a volume of 10,500 liters, and the temperature is 15°C. If the temperature were -25°C, what would the volume of the balloon be?
A buffer consists of 0.20 M KHCO3 and 0.44 M K2CO3. Carbonic acid is a diprotic acid with Ka1 = 4.5 multiplied by 10-7 and Ka2 = 4.7 multiplied by 10-11.
Describe how to prepare BaSO4 by: a. an acid-base reaction b. a gas-forming reaction, and c. an oxidation-reduction reaction. The available starting materials are ZNCO3, HCl, Cl2, HNO3, Zn(OH)2, NaCl, ZN(NO3)2, and Zn.
The purity of gold alloys is expressed in karats, which is the mass fraction of gold multiplied by 24. Pure gold is 24 kt, whereas 10 kt gold jewelry typically contains 41.666667% gold, 29.166667% silver and 29.166667% copper (by mass).
magnesium oxide decomposes into magnesium and oxygen. if12.09 g of magnesium oxide decomposes to form7.29 g of
Silicon, which occurs in nature as , is the material from which most computer chips are made. If is heated until it melts into a liquid, it reacts with solid carbon to form liquid silicon and carbon monoxide gas.
find deltah for the freezing of water at -8.00 degrees celcius. the specific heat capacity of ice is 2.04 jg. c and its
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