General Chemistry Answers

Two pollutants that form in automobile exhaust are CO and NO. An environmental chemist must convert these pollutants to less harmful gases through the following: CO(g) + NO(g) → CO2(g) + ½ N2(g) ΔH = ? Given the following information, calculate the unknown ΔH: (1) CO(g) + ½ O2(g) → CO2(g) ΔH = -283.0 kJ (2) N2(g) + O2(g) → 2NO(g) ΔH = 180.6 kJ

Ag 107.9g/mol. what is mass of Ag

which element would have atoms with the same number of water electrons as carbon atoms?

The pressure inside a hydrogen-filled container was 2.10 atm

atm at 21 

∘

C

∘C. What would the pressure be if the container was heated to 89 

∘

C

∘C ?

Compound X has a molar mass of 176.12·gmol−1 and the following composition:

element/mass

carbon: 40.91%

hydrogen: 4.58%

oxygen: 54.51%

Write the molecular formula of X

How to make 12% Fe3 Solution from Ferric Sulfate

Lactic acid solution is formed

-write reaction where lactic acid is reacted with water

-given Ka=1.4 x 10-^4 and [lactic acid] = 0.20 M determine [H3O+]

-determine Kb for lactic acid

-determine [OH-]

nutrional tables give the potassium content of a standard apple as 159mg. There are about 3apples/lb. how many grams of potassium are in 42.10kg of apples

What is the osmolarity of a solution containing 0.40% NaCl and 15% dextrose monohydrate?