General Chemistry Answers

In a ground state atom of S how many electrons total will have the quantum number ℓ = 0?

How many atoms of zinc are in 1.00 g

The reaction: 2 H2S(g) ⇌ 2 H2(g) + S2(g) K = 5.13 X 10-6 (at 873 K)

is carried out with the following initial partial pressures: P (H2S) = 1.00 X 10-3 bar, P(H2) = 1.00 X 10^-5 bar, and P(S2) = 0.100 bar. Find the partial pressures of each of the reactants and products at equilibrium. Also show the % error calculation with an explanation of your reasoning and show the ICE table and the calculation for Q.

Under the same condition of pressure Hydrogen diffuses 8 times as fast as gas Y. Calculate the relative molecular mass

State the type of reaction formed when elements x with atomic number 12 contained with element y with atomic number 8

1.   In an experiment, 112cm³ of carbon (iv) oxide gas were collected at s.t.p. How many molecules of the gas are present? (molar volume of the gas at stp=22.4dm, L=6.02 x 10²³mol^-1)

The Haber process for the synthesis of ammonia from nitrogen and hydrogen gases in an exothermic process.

N2(g) + 3H2(g) ⇌ 2 NH3 (g) ΔHrxn= -92.4 kJ

How will the following conditions affect the equilibrium of the system?

a) adding more N2 =

b) removing 3H2 =

c) removing NH3 =

d) increasing the pressure in the reaction vessel =

e) decreasing the temperature of the system =

2C5H12OH +15O2 ---> 10CO2 + 12H20

a). How many moles of O2 are needed for the combustion of 1 mole alkanol?

b). How many moles of H2O are formed for each mole of O2 consumed?

c). How many grams of CO2 are produced for each mole of alkanol burned?

d). How many grams of CO2 are produced for each gram of alkanol burned?

Carbonyl fluoride, COF

2

COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF

4

CF4 via the reaction

The Haber process for the synthesis of ammonia from nitrogen and hydrogen gases in an exothermic process.

N2(g) + 3H2(g) ⇌ 2 NH3 (g) ΔHrxn= -92.4 kJ

How will the following conditions affect the equilibrium of the system?

a) adding more N₂ =

b) removing 3H₂    =

c) removing NH₃    =

d) increasing the pressure in the reaction vessel   =

e) decreasing the temperature of the system        =