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Gold metal will not dissolve in either concentrated nitric acid or concentrated hydrochloric acid. It will dissolve, however, in aqua regia, a mixture of the two concentrated acids. The products of the reaction are the AuCl46- ion and gaseous NO. Write a balanced equation for the dissolution of gold in aqua regia.
What results can be expected in the near-term? The mid-term? The long-term? Nanotech's development can usefully be divided into stages, for example:
(a) Excess-3 code is a 4-bit binary code for the 10 decimal digits and is found useful in digital computer arithmetic. Each combination is found by adding 3 to the decimal number being coded and translating the result into direct binary form. Set ..
How much weight must it bear? Will your add-on lap tray user make the wheelchair user more or less independent? What type of materials should be used?
Need to make 250 ml of a 0.100 M solution of aluminum from a 5M stock of aluminum nitrate. What do you do?
What mass of ethylene glycol, HOCH2CH2OH, must be dissolved in 4.510 kg of water to result in a freezing point of 18.0°C? What is the boiling point of the same solution?
Calculate the required value of Ta1 if the film temperature falls to 34°C, and the value if it rises to 36°C.
Calculate the required value of Ta1 if the film temperature falls to 34°C, and the value if it rises to 36°C.
If the generated emfs are 200 and 210 V, respectively, determine the load voltage and the armature current of each machine.
Calculate the ratio of the network over the amount of heat absorbed at the high temperature of the cycle. How does this value compare to the theoretical efficiency of the Carnot cycle that is calculated based on the two operating temperatures?
determine the force and the power required to overcome the skin friction.the ship is travelling in sea water(density1020kg/m^3) and at a speed of 24km/hr
between the analyses obtained during the two shifts?
Determine whether the system is best described by the Margules or the van Laar equation and determine the parameters of the corresponding equation.
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