Seperate oxidation and reduction half reactions
Write seperate oxidation and reduction half reactions
3 NO3- (aq) + 8Al (s) + 5 OH- (aq) + 18 H2O(L) ---> 3 NH3 (g) + 8 Al(OH)4- (aq)
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A gymnast of weight 720N is holding himself in the cross position on the high rings. He is quite still. Draw a free-body force diagram for the gymnast, showing the two upward pulls of the rings on his hands, each of size 380N.
Calculate (in kJ) the standard enthalpy change, , for the hydrogenation of ethyne (acetylene) to ethane: H-C≡C-H(g) + 2H2(g) → H3C-CH3(g)
Calculate Keq for 1 moles of electron(s) in each half-reaction and a standard potential of 0.38 V. A half-cell that consists of a copper wire in 1.00 M CuNO3 solution is connected by a salt bridge.
In general, decreasing the temperature makes which phase transitions more likely to occur?
Write seperate oxidation and reduction half reactions 3 NO3- (aq) + 8Al (s) + 5 OH- (aq) + 18 H2O(L) ---> 3 NH3 (g) + 8 Al(OH)4- (aq)
When Al metal reacts with HBr, aluminum bromide and hydrogen gas are formed. If you started with 3.75 g of aluminum and 24.7 g of HBr, how many grams of aluminum bromide would you expect to form?
An airplane moves forward at a speed W1= 971 kph. The frontal intake area of the jet engine is A1 = 0.8 m2 and the entering air density is ρ1 = 0.736 kg/m3.
What is the vapor pressure at 19?C of ethyl alcohol in equilibrium with a solution prepared by mixing 1.9 moles of methyl alcohol (CH3OH) with 1.1 moles of ethyl alcohol (C2H5OH)?
Ammonia, NH3, can be synthesized by the following reaction: Starting with 86.3 g NO and 25.6 g H2, find the theoretical yield of ammonia in grams
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