Question

molecular weight formula with examples​

Answer 1

Answer:

Element Atomic

Weight

H (Hydrogen) 1

C (Carbon) 12

N (Nitrogen) 14

O (Oxygen) 16

Na (Sodium) 23

Cl (Chlorine) 35

Table salt - NaCl

Answer: 23(1)+35(1)=58

Ammonia - NH3

Answer: 1(3)+14(1)=3+14=17

Vinegar (acetic acid) - CH3COOH

Answer: 1(4)+12(2)+16(2)=4+24+32=60

Explanation:

Answer 2

Answer:

The atomic weight of carbon and hydrogen may be found on a periodic table. molecular weight = (number of carbon atoms)(C atomic weight) + (number of H atoms)(H atomic weight) so we calculate as follows: molecular weight = (6 x 12.01) + (14 x 1.01) molecular weight of hexane = 72.06 + 14.14.

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