General Chemistry Answers

1. A 1.50 L reaction vessel contains a gaseous mixture of 2.1 mol NOCl, 0.52 mol NO and 0.21 mol Cl₂. The vessel was heated to 400^oCuntil the system attained equilibrium. If K_c is 0.035 at this temperature, to which direction did the reaction proceed to attain equilibrium? The reaction is as follows: 2NOCl _(g) <---> 2NO _(g) + Cl_{2 (g)}

1. The equilibrium constant K_p for the oxidation of sulfur dioxide into sulfur trioxide is 5.6 x 10⁴ at 350^oC. If the equilibrium partial pressures of SO₂ and SO₃ are 0.64 atm and 0.58 atm respectively, what is the partial pressure of O₂ in the system? The reaction is as follows: 2SO_{2 (g)} + O_{2 (g)} <---> 2SO_{3 (g)}

1. Consider the reaction: 2BrF_5 (g) <---> Br_{2 (g)} + 5F_{2 (g)}

• If the equilibrium concentrations of BrF₅, Br₂ and F₂ are 0.46 M, 1.2 M and 0.93 M, what is the value of K_c?

can an e- be described by the following set of quantum numbers? if not, indicate which of the quantum numbers has a value that is not valid: n=3, l=1, m1= 3 ,ms= -1/2

can an e be described by the following set of quantum numbers? If not, indicate which of the quantum numbers has a value that is not valid: n=1, l=1, m= +1 m=-1/2

Analysis of a certain compound of iron and chlorine shows that 0.1396 g of iron(Fe) combine with 0. 1773 g of chlorine (CI) calculate the emperial formula

Imagine that you are a chemist. Make a one-page action plan on how you can contribute in addressing one pressing socio-scientific issue or environmental problem. You can include an illustration, a table, or a chart in your output.

Sucrose (C12H22O11, table sugar) is oxidized in the body

by O2 via a complex set of reactions that ultimately produces

CO2(g) and H2O(g) and releases 5.64 103 kJ/mol sucrose.

(a) Write a balanced thermochemical equation for this reaction.

(b) How much heat is released per gram of sucrose oxidized?

Calculate the partial pressure of the ozone when the concentration is 441 ppb and the atmospheric pressure is 0.67 atm

Carbon12 (C12) is stable and is the most abundant isotope of carbon. An ancient scrap of paper has 0.7 times the Caron14 that a new piece of paper has. How many years old is the scrap of paper? (half-life of C14 is 5730 years)