Chemistry Answers

A metal tank contains three gasses: oxygen, helium, and nitrogen. If the partial pressures of

the three gasses in the tank are 40 atm of O2, 10 atm of N2, and 15 atm of He, what is the total

What number of liters of STP CO2 is produced when 7x10^23 molecules of O2 is consumed?

What number of molecules of CO2 will be produced if 3x10^24 molecules of O2(g) reacts?

What volume of Cl2(g) measured at STP is produced when 7.65 g of HCl(aq) reacts?

What is the relationship between equilibrium constants of acid-base, complexometric, precipitation, and redox titration and the feasibility of titration? What are the similarities and differences between the four types of titration? Are there other factors that need to be considered when assessing the feasibility of titration?

What is the relationship between equilibrium constants of acid-base, complexometric, precipitation, and redox titration and the feasibility of titration? What are the similarities and differences of the four types of titration? Are there other factors that need to be considered when assessing the feasibility of titration?

1. Balance the following redox reactions:

a. CH4 + NO2 —> N2 + CO2 + H2O (oxidation number method)

2. When silver metal, Ag, is exposed to hydrogen sulfide gas, H2S, it tarnishes. Is the reaction of Ag with H2S a redox

reaction? How did you arrive at your answer? If your answer is yes, identify the RA and OA.

a fuel gas containing 95% methane 5% N2 is burnt in a boiler furnace with 150% excess air. 86% of the methane goes to formation of CO2. 10% to CO and 4% remains unburnt. Calculate the composition of stack gas

The bond length of this molecule is roughly ________pm. Answer whole numbers rounded to the closest hundredth (e.g., 100, 200, 300, etc.).

if 15.50 grams of lead (II) nitrate mixes with 3.81 grams of sodium chloride how many grams of sodium nitrate are formed