General Chemistry Answers

List the values of n, l, ml for an orbital in the 4d subshell.   

n = ?            

l = ?          

ml = ?

What is the total number of orbitals associated with the principal quantum number

   a.  n=1?   

   b. n=2?        

   c. n=3?

Consider a hypothetical ionic compound AB (comprised of A⁺ and B^- ions).

Given the following enthalpy data and using a Born-Haber cycle calculation, predict ΔH_lattice in kJ mol^-1.

A_(s) + B_(s) → AB_(s) Δ_rH = -413 kJ mol^-1

A_(s) → A_(g) Δ_rH = 115 kJ mol^-1

B_(s) → B_(g) Δ_rH = 100 kJ mol^-1

First ionization energy of A_(g) = 516 kJ mol^-1

Electron affinity enthalpy of B_(g) (exothermic) = -374 kJ mol^-1

If 150 g of PI3 (MM = 411.7 g/mol) is added to 250 mL OF H2O (g/mol), d = 1.00 g/mL), Identify which will be limiting and excess reagents. How many grams of H3PO4 (MM = 97.99 g/mol) will be produced theoretically?

If you had excess chlorine, how many moles of of aluminum chloride could be produced from 23.0 g

g of aluminum?

How many moles of nitrogen gas would be produced if 7.83 moles of copper(II) oxide were reacted with excess ammonia in the following chemical reaction?

2 NH₃(g) + 3 CuO (s) → 3 Cu(s) + N₂(g) + 3 H₂O(g)

How many moles of NH₃ can be produced from 4.71 moles of nitrogen in the following reaction:

N₂ (g) + 3 H₂ (g) → 2 NH₃ (g)

If 10.0 moles of O₂ are reacted with excess NO in the reaction below, and only 3.8 mol of NO₂ were collected, then what is the percent yield for the reaction?

2 NO (g) + O₂ (g) → 2 NO₂ (g)

Can an aluminum electrode made from aluminum ions instead oof neutral aluminum generate electricity

2. Hydrogen gas, H2, reacts explosively with gaseous chlorine, Cl2, to form hydrogen chloride, HCl (g). What is the enthalpy change for the reaction of 1 mole of H2 (g) with 1 mole of Cl2 (g) if both the reactants and products are at standard state conditions? The standard enthalpy of formation of HCl (g) is

-92.3 kJ/mol.