URI CHM 103 EXAM 1 Exam Questions and answers (202472025)
Density - ✔✔D=mass/volume
% error - ✔✔(Theory-actual)(100%)/theory
%accuracy - ✔✔Actual(100%)/theory
Halogens - ✔✔F, Cl, Br, I, At
Molecular Weight - ✔✔Sum of atomic weights
Atomic Weight Formula - ✔✔AW=E(isotope%)(isotope mass)(1/100)
Avagadros number - ✔✔6.022x10^23
1 mole volume formula - ✔✔1 mol vol= (1mol)(molecular weight g/mol) (density g/mL)
%mass of atom of compound - ✔✔(Mass of atom)(100%)/(mass of compound)
Electrons - ✔✔1/1836 amu
-1 charge
Outside nucleus
Neutrons - ✔✔In nucleus
No charge
1 amu
1 up & 2 down quarks
Free neutrons decay
Weak Force - ✔✔Hold together neutrons
Protons - ✔✔In nucleus
+1 charge
1 amu
2 up & 1 down quarks
Strong Force - ✔✔Holds protons to neutrons
Mass number - ✔✔Protons + neutrons
Atomic number - ✔✔# protons and # electrons
U - ✔✔Uranium
Density - ✔✔D=mass/volume
% error - ✔✔(Theory-actual)(100%)/theory
%accuracy - ✔✔Actual(100%)/theory
Halogens - ✔✔F, Cl, Br, I, At
Molecular Weight - ✔✔Sum of atomic weights
Atomic Weight Formula - ✔✔AW=E(isotope%)(isotope mass)(1/100)
Avagadros number - ✔✔6.022x10^23
1 mole volume formula - ✔✔1 mol vol= (1mol)(molecular weight g/mol) (density g/mL)
%mass of atom of compound - ✔✔(Mass of atom)(100%)/(mass of compound)
Electrons - ✔✔1/1836 amu
-1 charge
Outside nucleus
Neutrons - ✔✔In nucleus
No charge
1 amu
1 up & 2 down quarks
Free neutrons decay
Weak Force - ✔✔Hold together neutrons
Protons - ✔✔In nucleus
+1 charge
1 amu
2 up & 1 down quarks
Strong Force - ✔✔Holds protons to neutrons
Mass number - ✔✔Protons + neutrons
Atomic number - ✔✔# protons and # electrons
U - ✔✔Uranium
