plss answer these two points?
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a) formula of carbon dioxide is CO2
so no. of atoms in compound =no. of atoms in carbon + no. of atoms in oxygen molecules
= 44 u
so no. of atoms in compound =no. of atoms in carbon + no. of atoms in oxygen molecules
= 44 u
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carbon and oxygen combine with ratio of 3 : 8 by mass
e.g 3part of mass of carbon combine with 8 part of mass of oxygen
but we know,
atomic mass of carbon = 12 g/mol
atomic mass of oxygen= 16 g/mol
so,
C : O = 12/3 : 16/2 = 2 : 1
by cross method
so, formula of compound = CO2
2)
a) in nature oxygen is required for living thing . so, generally in that time all know about oxygen . so, I think oxygen is used
b) atom mass = atomic mass of oxygen/{16× 6.023 × 10^23 } is not accurate but nearly to accurate. no any metal in that time give this type of correction .
e.g 3part of mass of carbon combine with 8 part of mass of oxygen
but we know,
atomic mass of carbon = 12 g/mol
atomic mass of oxygen= 16 g/mol
so,
C : O = 12/3 : 16/2 = 2 : 1
by cross method
so, formula of compound = CO2
2)
a) in nature oxygen is required for living thing . so, generally in that time all know about oxygen . so, I think oxygen is used
b) atom mass = atomic mass of oxygen/{16× 6.023 × 10^23 } is not accurate but nearly to accurate. no any metal in that time give this type of correction .
abhi178:
i hope you have to understand
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