Please Show Work 1) C4H10 + O2 = please finish this equation, balance it, and th

Question

Please Show Work

1) C4H10 + O2 =

please finish this equation, balance it, and then find the masses of each product in the equation using the fact that the mass of the sum of reagents (together) equals 12.345 grams.

2) please, answer the following question:

how much water and concentrated HCl did we have in original 6-folds mixture, if after addition of 12 L of water we got 14-folds solution?

3) WeWe have 1 mole of gas with a molar heat capacity equal to 5 J/mol*K inside a 5kg metal (specific heat of metal equal to 0.2 J/Kg*K) container with a free moving piston. We transfered 300 J to the system (container with gas), making the gas expand), making the gas expand. Volume of the container tuned out to be 3 times bigger when the piston stopped. Please, Calculate the intital and final temperature of the system(gas &container). Assume ideal gas behavior.

4) For a hydrogen-like atom, when an electron drops from level 3 to some reference level, there is a photon emission of some particular frequency. Moreover, when another electtron drops from level 5 to the same reference level, it was found that a photon of 1.8 times higher frequency was emitted. Using this data and Rydberg's constant 3.25x10^15 Hz, please determind the number of the reference level.

5)We have a photon gun that can launch photons with wavelengths equal to 300 nm. We point this gun to a small bath filled with 663 ml of water. How many photons do we have to launch in order to change the temperature of the water by 25K? Also please assume that only 10% of all launched photons will reach the water bath.

specific heat capacity (water) 4 J/g*K Planck's constant 6.63*10^-34 J*s Speed of light 3*10^8 m/s 1 nm 10^-9 m

Explanation / Answer

1. When any hydrocarbon is combusted, carbon dioxide and water is released.

So, the equation is

C4H10 + O2 ----------> CO2 + H2O

For balancing, we have no. of C, H and O same on each side of reaction by trial and error method.

C4H10 + O2-------------> 4CO2 + H2O ( by balancing C)

C4H10 + O2-------------> 4CO2 + 5H2O (by balancing H)

C4H10 + 13/2O2-------------> 4CO2 + 5H2O (by balancing O)

or  2C4H10 + 13O2-------------> 8CO2 + 10H2O (if not in fractions)

Please tell the reagents whose maases sum up to 12.345 grams .

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