PSU CHEM 110B Exam 1 Test
Questions with Correct Verified
Answers 2025/2026 Updated.
how to find mass number - Answer protons + neutrons
atomic number - Answer number of protons
anions - Answer negatively charged ions
cations - Answer positively charged ions
ions - Answer charged atoms
atomic weight - Answer average mass of all isotopes
how to find atomic weight - Answer sum of atomic mass x relative abundance
molecule - Answer group of atoms bonded together
Avogadro's number - Answer 6.02 x 10^23
grams to moles - Answer grams/molar mass
moles to grams - Answer moles x molar mass
grams to molecules - Answer divide by molar mass and multiply by Avogadro's number
molecules to grams - Answer divide by Avogadro's number and multiply by molar mass
moles to molecules - Answer multiply by Avogadro's number
, change in energy - Answer q+w
q - Answer heat
w - Answer work
work being done - Answer w less than 0
work performed - Answer w greater than 0
Coulomb's Law - Answer E=K(Q1xQ2)/r
r - Answer distance between nuclei
Q - Answer charges
enthalpy - Answer the heat content of a system
exothermic - Answer releases heat
endothermic - Answer absorbs heat
visible light spectrum - Answer 400-750 nm
energy is proportional to - Answer frequency
frequency is inversely proportional to - Answer wavelength and energy
speed of light formula - Answer c=vλ
speed of light - Answer 3.00 x 10^8 m/s
Questions with Correct Verified
Answers 2025/2026 Updated.
how to find mass number - Answer protons + neutrons
atomic number - Answer number of protons
anions - Answer negatively charged ions
cations - Answer positively charged ions
ions - Answer charged atoms
atomic weight - Answer average mass of all isotopes
how to find atomic weight - Answer sum of atomic mass x relative abundance
molecule - Answer group of atoms bonded together
Avogadro's number - Answer 6.02 x 10^23
grams to moles - Answer grams/molar mass
moles to grams - Answer moles x molar mass
grams to molecules - Answer divide by molar mass and multiply by Avogadro's number
molecules to grams - Answer divide by Avogadro's number and multiply by molar mass
moles to molecules - Answer multiply by Avogadro's number
, change in energy - Answer q+w
q - Answer heat
w - Answer work
work being done - Answer w less than 0
work performed - Answer w greater than 0
Coulomb's Law - Answer E=K(Q1xQ2)/r
r - Answer distance between nuclei
Q - Answer charges
enthalpy - Answer the heat content of a system
exothermic - Answer releases heat
endothermic - Answer absorbs heat
visible light spectrum - Answer 400-750 nm
energy is proportional to - Answer frequency
frequency is inversely proportional to - Answer wavelength and energy
speed of light formula - Answer c=vλ
speed of light - Answer 3.00 x 10^8 m/s
