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which is the first element to contain full p subshell?
how many total d orbitals can fit in a fourth level?
Describe the common features which can be explained by the theoretical model of Bohr.
Briefly write the limitation of this model.
Briefly write the limitation of this model.
Calculate the lattice energy (in units kJ mol^-1)on eelectrostatic model and using a Born Haber cycle. Compare the two answers and comment on any difference Useful data :modelung constant (A) =1.6411,Born Constant(n)=8,internuclear distance (a) =199,Zn(s)+1/2O2->ZnO(s) ΔHf=-350.5kJ mol^-1 ,Zn(s)->Zn(g) ΔHs=130.4 kJ Mol^-1,Zn(g)->Zn+ I(Zn)=906.3 kJ mol^-1,Zn+ ->Zn2+(g) I(Zn+)=1733 kJ mol^-1,1/2O2(g)->O(g) 1/2ΔHd=248.5 kJ mol^-1,O(g)->O^-(g) EA(O)=141kJ mol^-1,O^-(g) ->O^2-(g) EA(O^-)=-780 kJ Mol^-1
Find 2.28e+5 kg NH3 in liters at STP
How many moles of which reactant will remain if 1.39 moles of N2 and 3.44 moles of
H2 will react to form ammonia? find out how many grams of ammonia can be formed
and how many moles of limiting reactant is required to completely exhaust the other
reactant that is in excess?
H2 will react to form ammonia? find out how many grams of ammonia can be formed
and how many moles of limiting reactant is required to completely exhaust the other
reactant that is in excess?
Rutherford’s experiments included deflection of D-particles. As a result of its experiments, what did he conclude about the atom?
The stopcock connecting a 2.95 L bulb containing nitrogen gas at a pressure of 2.75 atm, and a 4.87 L bulb containing carbon dioxide gas at a pressure of 2.15 atm, is opened and the gases are allowed to mix. Assuming that the temperature remains constant, the final pressure in the system is
22) Consider the reaction if 33.2 g of K2CO3 is produced from reacting 40.0 g KO2 with 25.0 L of CO2 (at STP). The molar mass of KO2 = 71.10 g/mol and K2CO3 = 138.21 g/mol. (4 points)
4 KO2(s) + 2 CO2(g) → 2 K2CO3(s) + 3 O2(g)
a. How many moles of CO2 are available?
b. How much K2CO3 can be produced from the 33.2 g of KO2 that is available?
4 KO2(s) + 2 CO2(g) → 2 K2CO3(s) + 3 O2(g)
a. How many moles of CO2 are available?
b. How much K2CO3 can be produced from the 33.2 g of KO2 that is available?
Complete neutralization of a mixture of magnesium hydroxide and aluminum hydroxide is required 48.5 ml of 0.187M hydrochloric acid. The mixture of dry chloride salts from the reaction has the quantity of 0.420 g. What is the percentage by mass of magnesium hydroxide in the mixture of the above hydroxides for the reaction with HCl?
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#332078 on Oct 2022
#332078 on Oct 2022