17. Given the following heats of formation: SO2(g) = -297 kJ/mole, SO3(g) = -396 kJ/mole determine the heat of reaction (in kJ) for 2SO2(g) + O2(g) ----> 2SO3(g) a) -99 c) 99 b)...

17. Given the following heats of formation: SO2(g) = -297 kJ/mole, SO3(g) = -396 kJ/mole determine the heat of reaction (in kJ) for 2SO2(g) + O2(g) ----> 2SO3(g) a) -99 c) 99 b)...

11. 3N2O(g) + 2NH3(g) -----> 4N2(g) + 3H2O(g) Enthalpy change = -879.6 kJ What is the heat of formation for N2O in kJ/mole (heats of formation: NH3 = -45.9 kJ/mole and H2O =...

11. 3N2O(g) + 2NH3(g) -----> 4N2(g) + 3H2O(g) Enthalpy change = -879.6 kJ What is the heat of formation for N2O in kJ/mole (heats of formation: NH3 = -45.9 kJ/mole and H2O =...

3. 2Al(s) + 3O2(g) -----> 2Al2O3(s) enthalpy change is -3351 kJ What would be the enthalpy change (in kJ) for the formation of 65.0 g of Al2O3(s)? a) -251000 b) -126000 c) -2464 d)...

I am doing homework and this is one of the true or false questions that is on the worksheet

A block of mass m1=0.700 kg is connected over a pulley to a mass m2. For an angle of theta=30.0° and a coefficient of kinetic friction of μ= 0.400, an acceleration of magnitude a=0.450 m/s² is...

the cable exert on the crate? b) How much work is done on the crate by the force F?

the ball leave the barrel once the gun is fired? The spring constant is 7.5 N/cm. Assume no friction and a horizontal gun barrel.

30 mL of 0.10M Ba (OH)2 (aq) is added to 30 mL of 0.10 M H2SO4 and the solution is stirred quickly. The rise is temperate T 1 is measured. The experiment is repeated using 90 mL of each solution and...

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3Al (s)+3O2 (g)===> 2AlO3 (s) ΔH= -3351kJ How do I calculate the change in enthalpy in kJ for the formation of 65.0 g of Al2O3?

The heats of combustion of C, H2, and CH4 at 298K and 1 atm are respectively -393 kJ/mol, -286 kJ/mol, and -892 kJ/lol. How do I calculate the enthalpy of formation for CH4 using the given information...

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Can you write out the equation of the problem to the end. If you can that would be great.

Hello! I was going through my review questions and I got eight out of the ten questions done, but no matter what I do, I can't seem to figure out these two questions. Any help given would be highly...

I did the math for a physics problem, and got -1.225=.5(-9.8)t^2. The answer sheet says this is correct, and puts the result as .5. However, I don't see how to find this. I've used my knowledge of...

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What is the volume of a rock with a density of 3.68 g/cm3 and a mass of 430 g?

A cannon sends a projectile towards a target a distance 1440 m away. The initial velocity makes an angle 23◦ with the horizontal. The target is hit. The acceleration of gravity is 9.8 m/s2 . What...