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Question- What volume H2 can be produced at 780 mm Hg and 15 degrees Celsius from 1 mole Al, 1 mole NaOH and 2 moles H2O?--> Al(s) + NaOH(aq) + H2O (l) ---> NaAl(OH4) (s) + H2(g)
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what is the standard free energy change for thisreaction? Substance ?G°f (kJ/mol) CH3CH2OH(l) - 174.9 O2(g) 0 CO2(g) -394.4 H2O(g) -228.6 Express the free energy change inkilojoules using five significant figures. ?G° = ? kJ
Consider the reaction, 4 NH3 + 5 O2 => 4 NO + 6 H2O, How many molecules of NO will be made with 89.5 moles of H2O
Problem- A sample of 70 mmol of gas expands reversibly and isothermically at 373 K from 5.25 cm3 to 6.29 cm3. During such process the internal energy of the system increases by 83.5 J. Use the virial equation up to the second coefficient (B = -28...
Calculate the initial I- concentration in a solution containing 3.0mL of 0.20 M KI, 5.0 mL of 0.15 M (NH4)2S2O8, 5.0 mL of 0.25M (NH4)2SO4,
What is the pH of 10 drops of triethylamine in a dropperful of demineralized water? How does the reaction between triethylamine and water explain the measurement of the pH?
What is the value of the rate constant at the temperature of this experiment? Give an answer with concentration units of molarity and time units of seconds.
yellow-gold is an alloy that is 75.00% gold,16.00% silver and 9.00% copper (by mass). calculate the cost of the gold in a cube of the alloy 1.00 ft on a side.
Problem- Why does benzoic acid dissolve in a basic solution but not an acidic solution and why does 4-ethylaminobenzoate dissolves in acidic solution but not in basic solution
how much heat is absorbed when 63.7g h2o at 100 c and 101.3 kpa is converted to steam at 100 c.
question light of wavelength 669 nm is incident on a double slit. the angle between the central bright fringe and the
Rates increase with increasing concentration of reactants because there are more collisions between reactant molecules. At higher temperatures, a larger fraction of molecules have enough energy to get over the activation energy barrier.
At 298K these two liquids are somewhat miscible the mixture separates into two phases. Utilize a graphing calculator to compute the mole fraction of CCl4 in CS2 phase at 298K and then again at 375k.
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