General Chemistry Answers

1.     Carbon monoxide has a volume of 3.0 L at 35 °C . At what temperature does this occupy 4. 0 L?

Billions of pounds of urea are produced annually for use as a fertilizer

The reaction used is

2NH3+CO2=CO(NH2)2+H2O

The typical starting mixture has 3:1 mole ratio of NH3 to CO2 .If 47.7grams urea form per mole of CO2 that reacts what is the

A:Theoretical yield

B:Actual yield

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?

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.).

helium gas is collected over water at 25 degrees C. What is the partial pressure of the helium given that the atmospheric pressure is 750.0 mmHg

The final pressure, temperature, and volume of a gas sample is 2.0 atm, 25 °C, and 515 mL, respectively. What is the original volume of the gas if the original temperature and pressure were standard temperature and pressure (STP)?