I cant figure this problem out at all

nitrogen and hydrogen gases react to make ammonia. A closed, rigid cylinder contains a total of 0.750 mol of gas at 25 degrees C and 1.10 atm before the reaction takes place; the mole ratio of hydrogen to nitrogen in the cylinder is 3:2. Determine the temperature and the pressure of the gas in the cylinder at the end of the re ...continues

K values

I have the following problem where the gas phase decomposition of HI into H2 and I2is found to have Ea = 182 kj/mol. The rate constant at 700 degrees Celcius is 1.57 X 10 -3 M/s. I have to find the value of k at two separate temperatures (i.e. 600 degrees Celcius). How do I go about setting this problem up so that I can solve ...continues

Calculating % ionization

A 0.600m aqueous solution of a weak acid HX has a freezing point of -1.28 degrees C. Calculate the % ionization of HX. Kf H2O= 1.86 m= molality Step-by-step, how can % ionization be calculated using this information? What formula's or stoichiometry is involved?

using dimensional analysis to determine speed vs. time

Step 1: A 240 horsepower car beginning at a stop goes 1/10 of a mile. At optimum performance, what is the maximum speed in miles per hour the car can reach? Feet per minute? Step 2: How many feet have been traveled in a 240 horsepower car when the speed reaches 35 MPH at optimum performance? what fraction of a mile is that d ...continues

Ideal Gas Laws

I am given the volume (1024ml), pressure (1.2 atm) and temperature (36o C) and I need to determine the number of moles present.

Heat of reaction

For the reaction CO+NO2--> CO2+NO The activation energy for the forward reaction is 135kJ/mol of CO reacted from THIS information determine, A) the heat of the reaction B) what would happen to the reverse reaction

lab write-up Analysis of K3[Fe(C2O4)3]3H2O

Here is what i have measured in the lab. not sure what to do. C2O4^2- sample 1 sample 2 1.molarity KMnO4 .021 .021 2weight of sample .216 .0249 3 final buret reading 38ml 40.7ml 4 initial" " 2.3ml 6.5ml 5 vo ...continues

Elements

Questions 1 - 3: a) F b) S c) Mg d) Ar e) Mn 1) Forms monatomic ions with -2 charge in solutions. Ans A, B, C, D or F 2) Forms a compound having the formula KXOsub 4. Ans A, B, C, D or E 3) Forms oxides that are common air pollutants and that yield acidic solutions in water. Ans A, B, C, D or E

elements

Questions 4 - 6: a) Hydrofluoric acid b) Corbon dioxide c) Aluminum hydroxide d) Ammonia e) hydrogen peroxide 4) Is a good oxidizing agent. Ans A, B, C, D or E 5) Is used extensively for the production of fertilizers. Ans A, B, C, D or E 6) Has atmospheric properties. Ans A, B, C, D or E

elements

Questions 7 - 8: a) a network solid with covalent bonding b) a molecular solid with London dispersion forces only c) a molecular solid with hydrogen bonding d) an ionic solid e) a metallic solid 7) solid ethyl alcohol, Csub2Hsub5OH. Ans A, B, C, D or E 8) silicon dioxide, SiOsub2. Ans A, B, C, D or ...continues