what is the formula to find atomic weight and molecular weight?
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Formula to find atomic weight is ( Z + N)
where Z = atomic number or no of electrons/protons
N = no of neutrons
Formula to find molecular mass is summation of atomic weight of all the atoms present in a complex molecule multiplied by its coefficient
For example
CO₂
Molecular mass = 12 + 2(16) = 12 + 32 = 44 g
where coefiicient of O is 2
CaCO3
Molecular mass = 40 + 12 + 3(16) = 52 + 48 = 100 g
AJAYMAHICH:
weight and mass same hi h
ab to man jao
hehhehh
No u r wrong
okk thank you both of you
it is quantum chemistry dear dont think about it now
I am in 11th standard
our first chapter is based on these methods
I know you dont think about it deep
okkk
Answered by
1
Hello ________
good evening___________
ATOMIC MASS :
Atomic mass = Number of protons + number of neutrons + number of electrons
The atomic mass unit can be associated to other units of mass using the conversion factor
1u = 1.66054 X 10^ -24g
MOLECULAR MASS :
molecular mass = atomic mass * no. of atoms in a molecule
1. Table salt - NaCl
Answer: 23(1)+35(1)=58
2. Ammonia - NH3
Answer: 1(3)+14(1)=3+14=17
3. Vinegar (acetic acid) - CH3COOH
Answer: 1(4)+12(2)+16(2)=4+24+32=60
good evening___________
ATOMIC MASS :
Atomic mass = Number of protons + number of neutrons + number of electrons
The atomic mass unit can be associated to other units of mass using the conversion factor
1u = 1.66054 X 10^ -24g
MOLECULAR MASS :
molecular mass = atomic mass * no. of atoms in a molecule
1. Table salt - NaCl
Answer: 23(1)+35(1)=58
2. Ammonia - NH3
Answer: 1(3)+14(1)=3+14=17
3. Vinegar (acetic acid) - CH3COOH
Answer: 1(4)+12(2)+16(2)=4+24+32=60
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