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The reaction between nitrogen and oxygen gases requires the absorpotion of 43 kJ of energy per mole of nitrogen according to the following chemical equation,
N2 (g) + O2 (g) ---> 2NO (g)
How many grams of NO are produced in the reaction if 324 kJ of heat are absorbed by the reaction?
what mass of magnesium in reaction with an excess of hydrochloric acid is needed to produce 128 ml of hydrogen h2 gas?
The solubility of calcium arsenate (Ca3(AsO4)2, molar mass = 398.078 g) in water is measured to be 0.050 g/L. What is Ksp for this salt
What is the reducing agent and what has been reduced? What quantity of iodine can be obtained if 20.0g of NaI is mixed with 10.0g of MnO2 ( and a stoichiometric excess of sulfuric acid)
How do you write a balanced equation for the following? Also key coenzymes for each process is needed
An unknown gas is placed in a 1.500L bulb at a pressure of 356mm Hg and a temperature of 22.5C, and is found to weigh 0.9847g. What is the molecular mass of the gas
Determine the rate of heat transfer to the heat engine if both devices are reversible and all of the power output from the heat engine is used to supply the refrigerator
the pressure on a 625 ml sample of gas is changed from .925 atm to 1.45 atm. what is the new sample of gas?
When a 7.00 g sample of RbBr is dissolved in water in a calorimeter that has total heat capacity of 3.565 KJ.K^-1, the temperature decreases by 0.260K. Calculate the molar heat solution of RbBr
The second order reaction for the breakdown of nitric oxide to its elements has the rate constants of 0.0796 L/mol-s at 737 C and 0.0815 L/mol-s at 947 C. What is the activation energy of this reaction?
A water sample has a pH of 8.21 and a total calcium concentration of 143 ppm. What is the total alkalinity of the water?
Determine whether the following are acids or bases: C5H5N, CH3COOH, C6H5SH, and CH3CH2NH2
Diet cola drinks have a pH of about 3.0, while milk has a pH of about 7.0. How many times greater is the H3O+ concentration in diet cola than in milk
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